323131424 has 96 divisors (see below), whose sum is σ = 798336000. Its totient is φ = 125072640.

The previous prime is 323131399. The next prime is 323131441. The reversal of 323131424 is 424131323.

It is a self number, because there is not a number n which added to its sum of digits gives 323131424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490007 + ... + 490665.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2^323131424 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 323131424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399168000).

323131424 is an abundant number, since it is smaller than the sum of its proper divisors (475204576).

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

323131424 is a wasteful number, since it uses less digits than its factorization.

323131424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 878 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 323131424 is about 17975.8566972481. The cubic root of 323131424 is about 686.2142485437.

Adding to 323131424 its reverse (424131323), we get a palindrome (747262747).

The spelling of 323131424 in words is "three hundred twenty-three million, one hundred thirty-one thousand, four hundred twenty-four".