256754538 has 48 divisors (see below), whose sum is σ = 565044480. Its totient is φ = 84250368.

The previous prime is 256754527. The next prime is 256754549. The reversal of 256754538 is 835457652.

256754538 is a `hidden beast` number, since 2 + 5 + 67 + 54 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (256754527) and next prime (256754549).

It is a junction number, because it is equal to n+sod(n) for n = 256754493 and 256754502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 535783 + ... + 536261.

It is an arithmetic number, because the mean of its divisors is an integer number (11771760).

Almost surely, 2^256754538 is an apocalyptic number.

256754538 is an abundant number, since it is smaller than the sum of its proper divisors (308289942).

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

256754538 is a wasteful number, since it uses less digits than its factorization.

256754538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 888 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 256754538 is about 16023.5619635585. The cubic root of 256754538 is about 635.5836393178.

The spelling of 256754538 in words is "two hundred fifty-six million, seven hundred fifty-four thousand, five hundred thirty-eight".