256902894 has 16 divisors (see below), whose sum is σ = 570895440. Its totient is φ = 85634280.

The previous prime is 256902889. The next prime is 256902923. The reversal of 256902894 is 498209652.

256902894 is a `hidden beast` number, since 2 + 569 + 0 + 2 + 89 + 4 = 666.

256902894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2378677 + ... + 2378784.

It is an arithmetic number, because the mean of its divisors is an integer number (35680965).

Almost surely, 2^256902894 is an apocalyptic number.

256902894 is an abundant number, since it is smaller than the sum of its proper divisors (313992546).

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

256902894 is a wasteful number, since it uses less digits than its factorization.

256902894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757472 (or 4757466 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 256902894 is about 16028.1906028098. The cubic root of 256902894 is about 635.7060318200.

The spelling of 256902894 in words is "two hundred fifty-six million, nine hundred two thousand, eight hundred ninety-four".