656349312 has 32 divisors (see below), whose sum is σ = 1743428880. Its totient is φ = 218782976.

The previous prime is 656349283. The next prime is 656349349. The reversal of 656349312 is 213943656.

It is a tau number, because it is divible by the number of its divisors (32).

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, 854238 + ... + 855005.

Almost surely, 2^656349312 is an apocalyptic number.

It is an amenable number.

656349312 is an abundant number, since it is smaller than the sum of its proper divisors (1087079568).

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

656349312 is a wasteful number, since it uses less digits than its factorization.

656349312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709260 (or 1709248 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 656349312 is about 25619.3152133307. The cubic root of 656349312 is about 869.0504953481.

The spelling of 656349312 in words is "six hundred fifty-six million, three hundred forty-nine thousand, three hundred twelve".