257284274 has 16 divisors (see below), whose sum is σ = 418608960. Its totient is φ = 117890640.

The previous prime is 257284189. The next prime is 257284289. The reversal of 257284274 is 472482752.

257284274 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 31982 + ... + 39209.

It is an arithmetic number, because the mean of its divisors is an integer number (26163060).

Almost surely, 2^257284274 is an apocalyptic number.

257284274 is a deficient number, since it is larger than the sum of its proper divisors (161324686).

257284274 is a wasteful number, since it uses less digits than its factorization.

257284274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71345.

The product of its digits is 250880, while the sum is 41.

The square root of 257284274 is about 16040.0833538981. The cubic root of 257284274 is about 636.0204511309.

The spelling of 257284274 in words is "two hundred fifty-seven million, two hundred eighty-four thousand, two hundred seventy-four".