320883904 has 56 divisors (see below), whose sum is σ = 705112128. Its totient is φ = 143658240.

The previous prime is 320883887. The next prime is 320883907. The reversal of 320883904 is 409388023.

320883904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (320883907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43767 + ... + 50569.

It is an arithmetic number, because the mean of its divisors is an integer number (12591288).

Almost surely, 2^320883904 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 320883904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352556064).

320883904 is an abundant number, since it is smaller than the sum of its proper divisors (384228224).

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

320883904 is a wasteful number, since it uses less digits than its factorization.

320883904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 320883904 is about 17913.2326507529. The cubic root of 320883904 is about 684.6195724474.

The spelling of 320883904 in words is "three hundred twenty million, eight hundred eighty-three thousand, nine hundred four".