324497664 has 90 divisors (see below), whose sum is σ = 967655150. Its totient is φ = 108158976.

The previous prime is 324497653. The next prime is 324497671. The reversal of 324497664 is 466794423.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 228614400 + 95883264 = 15120^2 + 9792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12912 + ... + 28560.

Almost surely, 2^324497664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 324497664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483827575).

324497664 is an abundant number, since it is smaller than the sum of its proper divisors (643157486).

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

324497664 is an equidigital number, since it uses as much as digits as its factorization.

324497664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15677 (or 15654 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 324497664 is about 18013.8186956570. The cubic root of 324497664 is about 687.1800218528.

The spelling of 324497664 in words is "three hundred twenty-four million, four hundred ninety-seven thousand, six hundred sixty-four".