320313032 has 16 divisors (see below), whose sum is σ = 646786140. Its totient is φ = 147836736.

The previous prime is 320313023. The next prime is 320313043. The reversal of 320313032 is 230313023.

It can be written as a sum of positive squares in 2 ways, for example, as 318479716 + 1833316 = 17846^2 + 1354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320313032.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539863 + ... + 1540070.

Almost surely, 2^320313032 is an apocalyptic number.

It is an amenable number.

320313032 is an abundant number, since it is smaller than the sum of its proper divisors (326473108).

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

320313032 is a wasteful number, since it uses less digits than its factorization.

320313032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079952 (or 3079948 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 320313032 is about 17897.2911916860. The cubic root of 320313032 is about 684.2133381477.

Adding to 320313032 its reverse (230313023), we get a palindrome (550626055).

Subtracting from 320313032 its reverse (230313023), we obtain a palindrome (90000009).

The spelling of 320313032 in words is "three hundred twenty million, three hundred thirteen thousand, thirty-two".