Names of 398
| Nominal | 398 |
| Cardinal | three hundred ninety-eight |
| Ordinal | 398th |
| This number as US currency | three hundred ninety-eight dollars |
| Is 398 an odd number? | 398 is NOT an odd number |
| Is 398 an even number? | 398 is an even number |
| Is 398 a palindrome? | 398 is NOT a palindrome number |
| Is 398 a triangle number? | 398 is NOT a triangle number |
398 in other Bases
| Base 2 (Binary) | 1100011102 |
| Base 3 (Ternary) | 1122023 |
| Base 4 (Quaternary) | 120324 |
| Base 5 (Quinary) | 30435 |
| Base 6 (Senary) | 15026 |
| Base 8 (Octal) | 6168 |
| Base 12 (Duodecimal) | 29212 |
| Base 16 (Hexadecimal) | 18E16 |
| Base 20 (Vigesimal) | JI20 |
Primes and Factors tests for 398
| Is 398 a Prime Number? | 398 is NOT a prime |
| Is 398 a perfect number? | 398 is NOT a perfect number |
| Is 398 a Mersenne Prime? | 398 is NOT a Mersenne prime |
| Is 398 a Fermat Prime? | 398 is NOT a Fermat prime |
| Is 398 a Fibonacci Prime? | 398 is NOT a Fibonacci prime |
| Is 398 a Partition Prime? | 398 is NOT a Partition prime |
| Is 398 a Pell Prime? | 398 is NOT a Pell prime |
| Prime Factors | Prime factors of 398 |
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398 in other Numerals
| 398 in Roman Numeral | CCCXCVIII |
| 398 in Chinese Numeral | 叄佰玖拾捌 |
| 398 in Egyptian Numeral | 𓍤𓎎𓐁 |
| 398 in Babylonian Numeral |   |
Roots and stuff for 398
| Is 398 a square number? | 398 is NOT a square number |
| Is 398 a cube number? | 398 is NOT a cube number |
| Square root of the number 398 | 19.94993734326 |
| Cube root of the number 398 | 7.3557623684011 |
Recreational math for 398
| Number 398 reversed | 893 |
| Sum of the digits | 20 |
| No of digits | 3 |