256624134 has 24 divisors (see below), whose sum is σ = 555768072. Its totient is φ = 78960960.

The previous prime is 256624111. The next prime is 256624177. The reversal of 256624134 is 431426652.

256624134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256624095 and 256624104.

It is a congruent number.

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, 125527 + ... + 127554.

It is an arithmetic number, because the mean of its divisors is an integer number (23157003).

Almost surely, 2^256624134 is an apocalyptic number.

256624134 is an abundant number, since it is smaller than the sum of its proper divisors (299143938).

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

256624134 is a wasteful number, since it uses less digits than its factorization.

256624134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253112 (or 253099 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 256624134 is about 16019.4923140529. The cubic root of 256624134 is about 635.4760181305.

The spelling of 256624134 in words is "two hundred fifty-six million, six hundred twenty-four thousand, one hundred thirty-four".