652644660 has 24 divisors (see below), whose sum is σ = 1827405216. Its totient is φ = 174038560.

The previous prime is 652644659. The next prime is 652644689. The reversal of 652644660 is 66446256.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 5438646 + ... + 5438765.

It is an arithmetic number, because the mean of its divisors is an integer number (76141884).

Almost surely, 2^652644660 is an apocalyptic number.

652644660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

652644660 is an abundant number, since it is smaller than the sum of its proper divisors (1174760556).

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

652644660 is a wasteful number, since it uses less digits than its factorization.

652644660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877423 (or 10877421 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 652644660 is about 25546.9109678646. The cubic root of 652644660 is about 867.4123401639.

The spelling of 652644660 in words is "six hundred fifty-two million, six hundred forty-four thousand, six hundred sixty".