323993344 has 72 divisors (see below), whose sum is σ = 692057520. Its totient is φ = 150847488.

The previous prime is 323993317. The next prime is 323993353. The reversal of 323993344 is 443399323.

It is a junction number, because it is equal to n+sod(n) for n = 323993297 and 323993306.

It is a congruent number.

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, 474027 + ... + 474709.

It is an arithmetic number, because the mean of its divisors is an integer number (9611910).

Almost surely, 2^323993344 is an apocalyptic number.

323993344 is a gapful number since it is divisible by the number (34) 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 323993344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346028760).

323993344 is an abundant number, since it is smaller than the sum of its proper divisors (368064176).

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

323993344 is a wasteful number, since it uses less digits than its factorization.

323993344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 811 counting only the distinct ones).

The product of its digits is 209952, while the sum is 40.

The square root of 323993344 is about 17999.8151101615. The cubic root of 323993344 is about 686.8238422788.

The spelling of 323993344 in words is "three hundred twenty-three million, nine hundred ninety-three thousand, three hundred forty-four".