652681940 has 24 divisors (see below), whose sum is σ = 1371202560. Its totient is φ = 260964128.

The previous prime is 652681937. The next prime is 652681957. The reversal of 652681940 is 49186256.

It is a happy number.

652681940 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57149 + ... + 67611.

It is an arithmetic number, because the mean of its divisors is an integer number (57133440).

Almost surely, 2^652681940 is an apocalyptic number.

It is an amenable number.

652681940 is an abundant number, since it is smaller than the sum of its proper divisors (718520620).

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

652681940 is a wasteful number, since it uses less digits than its factorization.

652681940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13591 (or 13589 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 652681940 is about 25547.6405955619. The cubic root of 652681940 is about 867.4288557955.

The spelling of 652681940 in words is "six hundred fifty-two million, six hundred eighty-one thousand, nine hundred forty".