652639580 has 24 divisors (see below), whose sum is σ = 1379279328. Its totient is φ = 259391808.

The previous prime is 652639579. The next prime is 652639583. The reversal of 652639580 is 85936256.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652639583) 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, 100784 + ... + 107063.

It is an arithmetic number, because the mean of its divisors is an integer number (57469972).

Almost surely, 2^652639580 is an apocalyptic number.

It is an amenable number.

652639580 is an abundant number, since it is smaller than the sum of its proper divisors (726639748).

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

652639580 is a wasteful number, since it uses less digits than its factorization.

652639580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208013 (or 208011 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 652639580 is about 25546.8115427346. The cubic root of 652639580 is about 867.4100895946.

The spelling of 652639580 in words is "six hundred fifty-two million, six hundred thirty-nine thousand, five hundred eighty".