323628560 has 20 divisors (see below), whose sum is σ = 752436588. Its totient is φ = 129451392.

The previous prime is 323628553. The next prime is 323628563. The reversal of 323628560 is 65826323.

It can be written as a sum of positive squares in 2 ways, for example, as 124367104 + 199261456 = 11152^2 + 14116^2 .

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

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 323628560.

It is not an unprimeable number, because it can be changed into a prime (323628563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2022599 + ... + 2022758.

Almost surely, 2^323628560 is an apocalyptic number.

It is an amenable number.

323628560 is an abundant number, since it is smaller than the sum of its proper divisors (428808028).

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

323628560 is a wasteful number, since it uses less digits than its factorization.

323628560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045370 (or 4045364 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 323628560 is about 17989.6792633999. The cubic root of 323628560 is about 686.5659805660.

The spelling of 323628560 in words is "three hundred twenty-three million, six hundred twenty-eight thousand, five hundred sixty".