404704459 has 2 divisors, whose sum is σ = 404704460. Its totient is φ = 404704458.

The previous prime is 404704441. The next prime is 404704463. The reversal of 404704459 is 954407404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404704459 - 2¹⁵ = 404671691 is a prime.

It is equal to p_21573667 and since 404704459 and 21573667 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (404704429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202352229 + 202352230.

It is an arithmetic number, because the mean of its divisors is an integer number (202352230).

Almost surely, 2^404704459 is an apocalyptic number.

404704459 is a deficient number, since it is larger than the sum of its proper divisors (1).

404704459 is an equidigital number, since it uses as much as digits as its factorization.

404704459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 404704459 is about 20117.2676822674. The cubic root of 404704459 is about 739.6836113987.

The spelling of 404704459 in words is "four hundred four million, seven hundred four thousand, four hundred fifty-nine".