320116732 has 48 divisors (see below), whose sum is σ = 660864960. Its totient is φ = 134249472.

The previous prime is 320116697. The next prime is 320116763. The reversal of 320116732 is 237611023.

It is a junction number, because it is equal to n+sod(n) for n = 320116697 and 320116706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19393 + ... + 31879.

It is an arithmetic number, because the mean of its divisors is an integer number (13768020).

Almost surely, 2^320116732 is an apocalyptic number.

It is an amenable number.

320116732 is an abundant number, since it is smaller than the sum of its proper divisors (340748228).

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

320116732 is a wasteful number, since it uses less digits than its factorization.

320116732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550 (or 12548 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 320116732 is about 17891.8062810886. The cubic root of 320116732 is about 684.0735389396.

Adding to 320116732 its reverse (237611023), we get a palindrome (557727755).

The spelling of 320116732 in words is "three hundred twenty million, one hundred sixteen thousand, seven hundred thirty-two".