256712676 has 48 divisors (see below), whose sum is σ = 662426688. Its totient is φ = 76723200.

The previous prime is 256712663. The next prime is 256712681. The reversal of 256712676 is 676217652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3685 + ... + 22956.

It is an arithmetic number, because the mean of its divisors is an integer number (13800556).

Almost surely, 2^256712676 is an apocalyptic number.

It is an amenable number.

256712676 is an abundant number, since it is smaller than the sum of its proper divisors (405714012).

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

256712676 is a wasteful number, since it uses less digits than its factorization.

256712676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26732 (or 26730 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 256712676 is about 16022.2556464438. The cubic root of 256712676 is about 635.5490949775.

The spelling of 256712676 in words is "two hundred fifty-six million, seven hundred twelve thousand, six hundred seventy-six".