257414992 has 30 divisors (see below), whose sum is σ = 502627614. Its totient is φ = 127710720.

The previous prime is 257414987. The next prime is 257415019. The reversal of 257414992 is 299414752.

It can be written as a sum of positive squares in 3 ways, for example, as 54523456 + 202891536 = 7384^2 + 14244^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 929158 + ... + 929434.

Almost surely, 2^257414992 is an apocalyptic number.

It is an amenable number.

257414992 is a deficient number, since it is larger than the sum of its proper divisors (245212622).

257414992 is an equidigital number, since it uses as much as digits as its factorization.

257414992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 520 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 257414992 is about 16044.1575659179. The cubic root of 257414992 is about 636.1281468506.

The spelling of 257414992 in words is "two hundred fifty-seven million, four hundred fourteen thousand, nine hundred ninety-two".