656652340 has 24 divisors (see below), whose sum is σ = 1379895552. Its totient is φ = 262484640.

The previous prime is 656652317. The next prime is 656652349. The reversal of 656652340 is 43256656.

It is a self number, because there is not a number n which added to its sum of digits gives 656652340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656652349) 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, 21925 + ... + 42355.

It is an arithmetic number, because the mean of its divisors is an integer number (57495648).

Almost surely, 2^656652340 is an apocalyptic number.

It is an amenable number.

656652340 is an abundant number, since it is smaller than the sum of its proper divisors (723243212).

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

656652340 is a wasteful number, since it uses less digits than its factorization.

656652340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22047 (or 22045 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 656652340 is about 25625.2285843463. The cubic root of 656652340 is about 869.1842179005.

The spelling of 656652340 in words is "six hundred fifty-six million, six hundred fifty-two thousand, three hundred forty".