256776232 has 16 divisors (see below), whose sum is σ = 502388640. Its totient is φ = 122805936.

The previous prime is 256776173. The next prime is 256776281. The reversal of 256776232 is 232677652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697578 + ... + 697945.

It is an arithmetic number, because the mean of its divisors is an integer number (31399290).

Almost surely, 2^256776232 is an apocalyptic number.

It is an amenable number.

256776232 is a deficient number, since it is larger than the sum of its proper divisors (245612408).

256776232 is a wasteful number, since it uses less digits than its factorization.

256776232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395552 (or 1395548 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The square root of 256776232 is about 16024.2388898818. The cubic root of 256776232 is about 635.6015396352.

The spelling of 256776232 in words is "two hundred fifty-six million, seven hundred seventy-six thousand, two hundred thirty-two".