323331372 has 192 divisors, whose sum is σ = 1043159040. Its totient is φ = 84333312.

The previous prime is 323331367. The next prime is 323331383. The reversal of 323331372 is 273133323.

It is a happy number.

323331372 is a `hidden beast` number, since 323 + 331 + 3 + 7 + 2 = 666.

It is a super-2 number, since 2×323331372² = 209086352238804768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1641178 + ... + 1641374.

It is an arithmetic number, because the mean of its divisors is an integer number (5433120).

Almost surely, 2^323331372 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 323331372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521579520).

323331372 is an abundant number, since it is smaller than the sum of its proper divisors (719827668).

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

323331372 is a wasteful number, since it uses less digits than its factorization.

323331372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 389 counting only the distinct ones).

The product of its digits is 6804, while the sum is 27.

The square root of 323331372 is about 17981.4174079798. The cubic root of 323331372 is about 686.3557584327.

Adding to 323331372 its reverse (273133323), we get a palindrome (596464695).

The spelling of 323331372 in words is "three hundred twenty-three million, three hundred thirty-one thousand, three hundred seventy-two".