652159728 has 80 divisors (see below), whose sum is σ = 2042131200. Its totient is φ = 197622720.

The previous prime is 652159699. The next prime is 652159769. The reversal of 652159728 is 827951256.

652159728 is a `hidden beast` number, since 6 + 52 + 1 + 597 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63868 + ... + 73371.

It is an arithmetic number, because the mean of its divisors is an integer number (25526640).

Almost surely, 2^652159728 is an apocalyptic number.

It is an amenable number.

652159728 is an abundant number, since it is smaller than the sum of its proper divisors (1389971472).

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

652159728 is a wasteful number, since it uses less digits than its factorization.

652159728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137267 (or 137255 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 652159728 is about 25537.4181937016. The cubic root of 652159728 is about 867.1974502701.

The spelling of 652159728 in words is "six hundred fifty-two million, one hundred fifty-nine thousand, seven hundred twenty-eight".