656352028 has 12 divisors (see below), whose sum is σ = 1179659992. Its totient is φ = 319306320.

The previous prime is 656352007. The next prime is 656352071. The reversal of 656352028 is 820253656.

It is a happy number.

656352028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 2217258 + ... + 2217553.

Almost surely, 2^656352028 is an apocalyptic number.

It is an amenable number.

656352028 is a deficient number, since it is larger than the sum of its proper divisors (523307964).

656352028 is a wasteful number, since it uses less digits than its factorization.

656352028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434852 (or 4434850 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 656352028 is about 25619.3682201572. The cubic root of 656352028 is about 869.0516940684.

The spelling of 656352028 in words is "six hundred fifty-six million, three hundred fifty-two thousand, twenty-eight".