256338776 has 16 divisors (see below), whose sum is σ = 480807600. Its totient is φ = 128123424.

The previous prime is 256338769. The next prime is 256338787. The reversal of 256338776 is 677833652.

It is a self number, because there is not a number n which added to its sum of digits gives 256338776.

It is a congruent number.

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, 34706 + ... + 41438.

It is an arithmetic number, because the mean of its divisors is an integer number (30050475).

Almost surely, 2^256338776 is an apocalyptic number.

It is an amenable number.

256338776 is a deficient number, since it is larger than the sum of its proper divisors (224468824).

256338776 is a wasteful number, since it uses less digits than its factorization.

256338776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11498 (or 11494 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 47.

The square root of 256338776 is about 16010.5832498382. The cubic root of 256338776 is about 635.2403876276.

The spelling of 256338776 in words is "two hundred fifty-six million, three hundred thirty-eight thousand, seven hundred seventy-six".