256024431 has 48 divisors (see below), whose sum is σ = 420638400. Its totient is φ = 148870656.

The previous prime is 256024427. The next prime is 256024481. The reversal of 256024431 is 134420652.

256024431 is a `hidden beast` number, since 25 + 602 + 4 + 4 + 31 = 666.

It is not a de Polignac number, because 256024431 - 2² = 256024427 is a prime.

It is a super-2 number, since 2×256024431² = 131097018537747522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256024395 and 256024404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256024421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238965 + ... + 240033.

It is an arithmetic number, because the mean of its divisors is an integer number (8763300).

Almost surely, 2^256024431 is an apocalyptic number.

256024431 is a deficient number, since it is larger than the sum of its proper divisors (164613969).

256024431 is a wasteful number, since it uses less digits than its factorization.

256024431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 256024431 is about 16000.7634505357. The cubic root of 256024431 is about 634.9806189964.

The spelling of 256024431 in words is "two hundred fifty-six million, twenty-four thousand, four hundred thirty-one".