256883428 has 12 divisors (see below), whose sum is σ = 449850352. Its totient is φ = 128354760.

The previous prime is 256883411. The next prime is 256883443. The reversal of 256883428 is 824388652.

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, 14850 + ... + 27097.

Almost surely, 2^256883428 is an apocalyptic number.

It is an amenable number.

256883428 is a deficient number, since it is larger than the sum of its proper divisors (192966924).

256883428 is a wasteful number, since it uses less digits than its factorization.

256883428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43482 (or 43480 counting only the distinct ones).

The product of its digits is 737280, while the sum is 46.

The square root of 256883428 is about 16027.5833487148. The cubic root of 256883428 is about 635.6899752133.

The spelling of 256883428 in words is "two hundred fifty-six million, eight hundred eighty-three thousand, four hundred twenty-eight".