256948064 has 24 divisors (see below), whose sum is σ = 535624488. Its totient is φ = 120916480.

The previous prime is 256948061. The next prime is 256948079. The reversal of 256948064 is 460849652.

256948064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256948061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235622 + ... + 236709.

It is an arithmetic number, because the mean of its divisors is an integer number (22317687).

Almost surely, 2^256948064 is an apocalyptic number.

It is an amenable number.

256948064 is an abundant number, since it is smaller than the sum of its proper divisors (278676424).

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

256948064 is a wasteful number, since it uses less digits than its factorization.

256948064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472358 (or 472350 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 256948064 is about 16029.5996207017. The cubic root of 256948064 is about 635.7432873478.

The spelling of 256948064 in words is "two hundred fifty-six million, nine hundred forty-eight thousand, sixty-four".