257972974 has 16 divisors (see below), whose sum is σ = 442447200. Its totient is φ = 110507904.

The previous prime is 257972947. The next prime is 257972983. The reversal of 257972974 is 479279752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50322 + ... + 55210.

It is an arithmetic number, because the mean of its divisors is an integer number (27652950).

Almost surely, 2^257972974 is an apocalyptic number.

257972974 is a deficient number, since it is larger than the sum of its proper divisors (184474226).

257972974 is a wasteful number, since it uses less digits than its factorization.

257972974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667.

The product of its digits is 2222640, while the sum is 52.

The square root of 257972974 is about 16061.5370995431. The cubic root of 257972974 is about 636.5874465664.

The spelling of 257972974 in words is "two hundred fifty-seven million, nine hundred seventy-two thousand, nine hundred seventy-four".