256123884 has 36 divisors (see below), whose sum is σ = 612602312. Its totient is φ = 83285760.

The previous prime is 256123871. The next prime is 256123919. The reversal of 256123884 is 488321652.

256123884 is digitally balanced in base 2, 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 11 ways as a sum of consecutive naturals, for example, 13824 + ... + 26520.

Almost surely, 2^256123884 is an apocalyptic number.

It is an amenable number.

256123884 is an abundant number, since it is smaller than the sum of its proper divisors (356478428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256123884 is a wasteful number, since it uses less digits than its factorization.

256123884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786 (or 12743 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 256123884 is about 16003.8709067525. The cubic root of 256123884 is about 635.0628280158.

The spelling of 256123884 in words is "two hundred fifty-six million, one hundred twenty-three thousand, eight hundred eighty-four".