256238968 has 16 divisors (see below), whose sum is σ = 481689000. Its totient is φ = 127788576.

The previous prime is 256238953. The next prime is 256238987. The reversal of 256238968 is 869832652.

It is a congruent number.

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, 38058 + ... + 44281.

Almost surely, 2^256238968 is an apocalyptic number.

It is an amenable number.

256238968 is a deficient number, since it is larger than the sum of its proper divisors (225450032).

256238968 is a wasteful number, since it uses less digits than its factorization.

256238968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82734 (or 82730 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 256238968 is about 16007.4660080851. The cubic root of 256238968 is about 635.1579312468.

The spelling of 256238968 in words is "two hundred fifty-six million, two hundred thirty-eight thousand, nine hundred sixty-eight".