320804032 has 56 divisors (see below), whose sum is σ = 664220160. Its totient is φ = 153538560.

The previous prime is 320803997. The next prime is 320804053. The reversal of 320804032 is 230408023.

It is a junction number, because it is equal to n+sod(n) for n = 320803994 and 320804012.

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, 235032 + ... + 236392.

Almost surely, 2^320804032 is an apocalyptic number.

320804032 is a gapful number since it is divisible by the number (32) 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 320804032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332110080).

320804032 is an abundant number, since it is smaller than the sum of its proper divisors (343416128).

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

320804032 is a wasteful number, since it uses less digits than its factorization.

320804032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 320804032 is about 17911.0030986542. The cubic root of 320804032 is about 684.5627642878.

The spelling of 320804032 in words is "three hundred twenty million, eight hundred four thousand, thirty-two".