256068328 has 8 divisors (see below), whose sum is σ = 480128130. Its totient is φ = 128034160.

The previous prime is 256068317. The next prime is 256068349. The reversal of 256068328 is 823860652.

256068328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 239568484 + 16499844 = 15478^2 + 4062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16004263 + ... + 16004278.

Almost surely, 2^256068328 is an apocalyptic number.

It is an amenable number.

256068328 is a deficient number, since it is larger than the sum of its proper divisors (224059802).

256068328 is a wasteful number, since it uses less digits than its factorization.

256068328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32008547 (or 32008543 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 256068328 is about 16002.1351075411. The cubic root of 256068328 is about 635.0169073970.

The spelling of 256068328 in words is "two hundred fifty-six million, sixty-eight thousand, three hundred twenty-eight".