256467768 has 16 divisors (see below), whose sum is σ = 641169480. Its totient is φ = 85489248.

The previous prime is 256467707. The next prime is 256467787. The reversal of 256467768 is 867764652.

256467768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 256467768.

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, 5343055 + ... + 5343102.

Almost surely, 2^256467768 is an apocalyptic number.

It is an amenable number.

256467768 is an abundant number, since it is smaller than the sum of its proper divisors (384701712).

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

256467768 is a wasteful number, since it uses less digits than its factorization.

256467768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10686166 (or 10686162 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The square root of 256467768 is about 16014.6110786369. The cubic root of 256467768 is about 635.3469226704.

The spelling of 256467768 in words is "two hundred fifty-six million, four hundred sixty-seven thousand, seven hundred sixty-eight".