257042924 has 12 divisors (see below), whose sum is σ = 476285544. Its totient is φ = 120961344.

The previous prime is 257042909. The next prime is 257042939. The reversal of 257042924 is 429240752.

It is an interprime number because it is at equal distance from previous prime (257042909) and next prime (257042939).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 1889954 + ... + 1890089.

It is an arithmetic number, because the mean of its divisors is an integer number (39690462).

Almost surely, 2^257042924 is an apocalyptic number.

It is an amenable number.

257042924 is a deficient number, since it is larger than the sum of its proper divisors (219242620).

257042924 is a wasteful number, since it uses less digits than its factorization.

257042924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780064 (or 3780062 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 257042924 is about 16032.5582487637. The cubic root of 257042924 is about 635.8215122200.

The spelling of 257042924 in words is "two hundred fifty-seven million, forty-two thousand, nine hundred twenty-four".