256023064 has 16 divisors (see below), whose sum is σ = 523683720. Its totient is φ = 116374080.

The previous prime is 256023059. The next prime is 256023071. The reversal of 256023064 is 460320652.

It is a happy number.

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, 1454589 + ... + 1454764.

Almost surely, 2^256023064 is an apocalyptic number.

It is an amenable number.

256023064 is an abundant number, since it is smaller than the sum of its proper divisors (267660656).

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

256023064 is a wasteful number, since it uses less digits than its factorization.

256023064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909370 (or 2909366 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 256023064 is about 16000.7207337670. The cubic root of 256023064 is about 634.9794888698.

The spelling of 256023064 in words is "two hundred fifty-six million, twenty-three thousand, sixty-four".