Names of 1638
| Nominal | 1638 |
| Cardinal | one thousand six hundred thirty-eight |
| Ordinal | 1,638th |
| This number as US currency | one thousand six hundred thirty-eight dollars |
| Is 1638 an odd number? | 1638 is NOT an odd number |
| Is 1638 an even number? | 1638 is an even number |
| Is 1638 a palindrome? | 1638 is NOT a palindrome number |
| Is 1638 a triangle number? | 1638 is NOT a triangle number |
1638 in other Bases
| Base 2 (Binary) | 110011001102 |
| Base 3 (Ternary) | 20202003 |
| Base 4 (Quaternary) | 1212124 |
| Base 5 (Quinary) | 230235 |
| Base 6 (Senary) | 113306 |
| Base 8 (Octal) | 31468 |
| Base 12 (Duodecimal) | B4612 |
| Base 16 (Hexadecimal) | 66616 |
| Base 20 (Vigesimal) | 41I20 |
Primes and Factors tests for 1638
| Is 1638 a Prime Number? | 1638 is NOT a prime |
| Is 1638 a perfect number? | 1638 is NOT a perfect number |
| Is 1638 a Mersenne Prime? | 1638 is NOT a Mersenne prime |
| Is 1638 a Fermat Prime? | 1638 is NOT a Fermat prime |
| Is 1638 a Fibonacci Prime? | 1638 is NOT a Fibonacci prime |
| Is 1638 a Partition Prime? | 1638 is NOT a Partition prime |
| Is 1638 a Pell Prime? | 1638 is NOT a Pell prime |
| Prime Factors | Prime factors of 1638 |
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1638 in other Numerals
| 1638 in Roman Numeral | MDCXXXVIII |
| 1638 in Chinese Numeral | 壹仟陸佰叄拾捌 |
| 1638 in Egyptian Numeral | 𓆼𓍧𓎈𓐁 |
| 1638 in Babylonian Numeral |   |
Roots and stuff for 1638
| Is 1638 a square number? | 1638 is NOT a square number |
| Is 1638 a cube number? | 1638 is NOT a cube number |
| Square root of the number 1638 | 40.472212689696 |
| Cube root of the number 1638 | 11.787941334361 |
Recreational math for 1638
| Number 1638 reversed | 8361 |
| Sum of the digits | 18 |
| No of digits | 4 |