256924 has 6 divisors (see below), whose sum is σ = 449624. Its totient is φ = 128460.

The previous prime is 256903. The next prime is 256931. The reversal of 256924 is 429652.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 256892 and 256901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32112 + ... + 32119.

2²⁵⁶⁹²⁴ is an apocalyptic number.

It is an amenable number.

256924 is a deficient number, since it is larger than the sum of its proper divisors (192700).

256924 is a wasteful number, since it uses less digits than its factorization.

256924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64235 (or 64233 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 256924 is about 506.8767108479. The cubic root of 256924 is about 63.5723440271.

The spelling of 256924 in words is "two hundred fifty-six thousand, nine hundred twenty-four".