652418320 has 20 divisors (see below), whose sum is σ = 1516872780. Its totient is φ = 260967296.

The previous prime is 652418311. The next prime is 652418321. The reversal of 652418320 is 23814256.

It can be written as a sum of positive squares in 2 ways, for example, as 87310336 + 565107984 = 9344^2 + 23772^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (652418321) 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, 4077535 + ... + 4077694.

It is an arithmetic number, because the mean of its divisors is an integer number (75843639).

Almost surely, 2^652418320 is an apocalyptic number.

It is an amenable number.

652418320 is an abundant number, since it is smaller than the sum of its proper divisors (864454460).

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

652418320 is a wasteful number, since it uses less digits than its factorization.

652418320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155242 (or 8155236 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 652418320 is about 25542.4806939342. The cubic root of 652418320 is about 867.3120544487.

The spelling of 652418320 in words is "six hundred fifty-two million, four hundred eighteen thousand, three hundred twenty".