324697644 has 72 divisors (see below), whose sum is σ = 862701840. Its totient is φ = 102840192.

The previous prime is 324697621. The next prime is 324697651. The reversal of 324697644 is 446796423.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 324697644.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54442 + ... + 60110.

It is an arithmetic number, because the mean of its divisors is an integer number (11981970).

Almost surely, 2^324697644 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 324697644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431350920).

324697644 is an abundant number, since it is smaller than the sum of its proper divisors (538004196).

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

324697644 is a wasteful number, since it uses less digits than its factorization.

324697644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759 (or 5754 counting only the distinct ones).

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

The square root of 324697644 is about 18019.3685793926. The cubic root of 324697644 is about 687.3211569627.

The spelling of 324697644 in words is "three hundred twenty-four million, six hundred ninety-seven thousand, six hundred forty-four".