656928384 has 64 divisors (see below), whose sum is σ = 1994255040. Its totient is φ = 187693056.

The previous prime is 656928383. The next prime is 656928413. The reversal of 656928384 is 483829656.

656928384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (656928383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119509 + ... + 124884.

It is an arithmetic number, because the mean of its divisors is an integer number (31160235).

Almost surely, 2^656928384 is an apocalyptic number.

656928384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

656928384 is an abundant number, since it is smaller than the sum of its proper divisors (1337326656).

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

656928384 is a wasteful number, since it uses less digits than its factorization.

656928384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244417 (or 244405 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 656928384 is about 25630.6141947477. The cubic root of 656928384 is about 869.3059969407.

The spelling of 656928384 in words is "six hundred fifty-six million, nine hundred twenty-eight thousand, three hundred eighty-four".