256768576 has 21 divisors (see below), whose sum is σ = 509779651. Its totient is φ = 128320192.

The previous prime is 256768541. The next prime is 256768579. The reversal of 256768576 is 675867652.

The square root of 256768576 is 16024.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256768579) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 127191 + ... + 129193.

Almost surely, 2^256768576 is an apocalyptic number.

256768576 is the 16024-th square number.

It is an amenable number.

256768576 is a deficient number, since it is larger than the sum of its proper divisors (253011075).

256768576 is an frugal number, since it uses more digits than its factorization.

256768576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018 (or 2005 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 52.

The cubic root of 256768576 is about 635.5952225737.

The spelling of 256768576 in words is "two hundred fifty-six million, seven hundred sixty-eight thousand, five hundred seventy-six".