Names of 404
| Nominal | 404 |
| Cardinal | four hundred four |
| Ordinal | 404th |
| This number as US currency | four hundred four dollars |
| Is 404 an odd number? | 404 is NOT an odd number |
| Is 404 an even number? | 404 is an even number |
| Is 404 a palindrome? | 404 is a palindrome number |
| Is 404 a triangle number? | 404 is NOT a triangle number |
404 in other Bases
| Base 2 (Binary) | 1100101002 |
| Base 3 (Ternary) | 1122223 |
| Base 4 (Quaternary) | 121104 |
| Base 5 (Quinary) | 31045 |
| Base 6 (Senary) | 15126 |
| Base 8 (Octal) | 6248 |
| Base 12 (Duodecimal) | 29812 |
| Base 16 (Hexadecimal) | 19416 |
| Base 20 (Vigesimal) | 10420 |
Primes and Factors tests for 404
| Is 404 a Prime Number? | 404 is NOT a prime |
| Is 404 a perfect number? | 404 is NOT a perfect number |
| Is 404 a Mersenne Prime? | 404 is NOT a Mersenne prime |
| Is 404 a Fermat Prime? | 404 is NOT a Fermat prime |
| Is 404 a Fibonacci Prime? | 404 is NOT a Fibonacci prime |
| Is 404 a Partition Prime? | 404 is NOT a Partition prime |
| Is 404 a Pell Prime? | 404 is NOT a Pell prime |
| Prime Factors | Prime factors of 404 |
Sponsored
404 in other Numerals
| 404 in Roman Numeral | CDIV |
| 404 in Chinese Numeral | 肆佰肆 |
| 404 in Egyptian Numeral | 𓍥𓏽 |
| 404 in Babylonian Numeral |   |
Roots and stuff for 404
| Is 404 a square number? | 404 is NOT a square number |
| Is 404 a cube number? | 404 is NOT a cube number |
| Square root of the number 404 | 20.099751242242 |
| Cube root of the number 404 | 7.3925417917137 |
Recreational math for 404
| Number 404 reversed | 404 |
| Sum of the digits | 8 |
| No of digits | 3 |