320323332 has 96 divisors (see below), whose sum is σ = 871492608. Its totient is φ = 89691264.

The previous prime is 320323321. The next prime is 320323351. The reversal of 320323332 is 233323023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 320323299 and 320323308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1411003 + ... + 1411229.

It is an arithmetic number, because the mean of its divisors is an integer number (9078048).

Almost surely, 2^320323332 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 320323332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435746304).

320323332 is an abundant number, since it is smaller than the sum of its proper divisors (551169276).

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

320323332 is a wasteful number, since it uses less digits than its factorization.

320323332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 21.

The square root of 320323332 is about 17897.5789424156. The cubic root of 320323332 is about 684.2206719339.

Adding to 320323332 its reverse (233323023), we get a palindrome (553646355).

The spelling of 320323332 in words is "three hundred twenty million, three hundred twenty-three thousand, three hundred thirty-two".