256604892 has 24 divisors (see below), whose sum is σ = 601028736. Its totient is φ = 85208688.

The previous prime is 256604891. The next prime is 256604903. The reversal of 256604892 is 298406652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256604891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37498 + ... + 43809.

It is an arithmetic number, because the mean of its divisors is an integer number (25042864).

Almost surely, 2^256604892 is an apocalyptic number.

It is an amenable number.

256604892 is an abundant number, since it is smaller than the sum of its proper divisors (344423844).

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

256604892 is a wasteful number, since it uses less digits than its factorization.

256604892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81577 (or 81575 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 256604892 is about 16018.8917219638. The cubic root of 256604892 is about 635.4601348034.

The spelling of 256604892 in words is "two hundred fifty-six million, six hundred four thousand, eight hundred ninety-two".