324331072 has 56 divisors (see below), whose sum is σ = 695432696. Its totient is φ = 149188608.

The previous prime is 324331031. The next prime is 324331081. The reversal of 324331072 is 270133423.

It can be written as a sum of positive squares in 4 ways, for example, as 5494336 + 318836736 = 2344^2 + 17856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379798 + ... + 380650.

It is an arithmetic number, because the mean of its divisors is an integer number (12418441).

Almost surely, 2^324331072 is an apocalyptic number.

324331072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 324331072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347716348).

324331072 is an abundant number, since it is smaller than the sum of its proper divisors (371101624).

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

324331072 is a wasteful number, since it uses less digits than its factorization.

324331072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 324331072 is about 18009.1940963498. The cubic root of 324331072 is about 687.0624059159.

Adding to 324331072 its reverse (270133423), we get a palindrome (594464495).

The spelling of 324331072 in words is "three hundred twenty-four million, three hundred thirty-one thousand, seventy-two".