323320424 has 48 divisors (see below), whose sum is σ = 722437380. Its totient is φ = 135179520.

The previous prime is 323320423. The next prime is 323320451. The reversal of 323320424 is 424023323.

It can be written as a sum of positive squares in 2 ways, for example, as 265103524 + 58216900 = 16282^2 + 7630^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 323320424.

It is not an unprimeable number, because it can be changed into a prime (323320423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6014 + ... + 26130.

Almost surely, 2^323320424 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 323320424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361218690).

323320424 is an abundant number, since it is smaller than the sum of its proper divisors (399116956).

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

323320424 is a wasteful number, since it uses less digits than its factorization.

323320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20178 (or 20167 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 323320424 is about 17981.1129800132. The cubic root of 323320424 is about 686.3480116767.

Adding to 323320424 its reverse (424023323), we get a palindrome (747343747).

The spelling of 323320424 in words is "three hundred twenty-three million, three hundred twenty thousand, four hundred twenty-four".