257492968 has 16 divisors (see below), whose sum is σ = 483194880. Its totient is φ = 128641008.

The previous prime is 257492957. The next prime is 257493011. The reversal of 257492968 is 869294752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2280 + ... + 22807.

It is an arithmetic number, because the mean of its divisors is an integer number (30199680).

Almost surely, 2^257492968 is an apocalyptic number.

It is an amenable number.

257492968 is a deficient number, since it is larger than the sum of its proper divisors (225701912).

257492968 is a wasteful number, since it uses less digits than its factorization.

257492968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26376 (or 26372 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 257492968 is about 16046.5874253687. The cubic root of 257492968 is about 636.1923722224.

The spelling of 257492968 in words is "two hundred fifty-seven million, four hundred ninety-two thousand, nine hundred sixty-eight".