652468864 has 32 divisors (see below), whose sum is σ = 1301261940. Its totient is φ = 325877760.

The previous prime is 652468837. The next prime is 652468867. The reversal of 652468864 is 468864256.

It can be written as a sum of positive squares in 2 ways, for example, as 581774400 + 70694464 = 24120^2 + 8408^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (652468867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145374 + ... + 149794.

Almost surely, 2^652468864 is an apocalyptic number.

652468864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

652468864 is a deficient number, since it is larger than the sum of its proper divisors (648793076).

652468864 is a wasteful number, since it uses less digits than its factorization.

652468864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588 (or 5576 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The square root of 652468864 is about 25543.4700853271. The cubic root of 652468864 is about 867.3344512694.

The spelling of 652468864 in words is "six hundred fifty-two million, four hundred sixty-eight thousand, eight hundred sixty-four".