256425372 has 48 divisors (see below), whose sum is σ = 759781120. Its totient is φ = 73264176.

The previous prime is 256425353. The next prime is 256425391. The reversal of 256425372 is 273524652.

256425372 is a `hidden beast` number, since 2 + 5 + 642 + 5 + 3 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (256425353) and next prime (256425391).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168838 + ... + 170349.

Almost surely, 2^256425372 is an apocalyptic number.

It is an amenable number.

256425372 is an abundant number, since it is smaller than the sum of its proper divisors (503355748).

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

256425372 is a wasteful number, since it uses less digits than its factorization.

256425372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339207 (or 339199 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 256425372 is about 16013.2873576914. The cubic root of 256425372 is about 635.3119115750.

The spelling of 256425372 in words is "two hundred fifty-six million, four hundred twenty-five thousand, three hundred seventy-two".