320545032 has 32 divisors (see below), whose sum is σ = 801952800. Its totient is φ = 106769664.

The previous prime is 320545031. The next prime is 320545037. The reversal of 320545032 is 230545023.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 320544993 and 320545011.

It is not an unprimeable number, because it can be changed into a prime (320545031) 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, 34944 + ... + 43152.

It is an arithmetic number, because the mean of its divisors is an integer number (25061025).

Almost surely, 2^320545032 is an apocalyptic number.

It is an amenable number.

320545032 is an abundant number, since it is smaller than the sum of its proper divisors (481407768).

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

320545032 is a wasteful number, since it uses less digits than its factorization.

320545032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845 (or 9841 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 320545032 is about 17903.7714462624. The cubic root of 320545032 is about 684.3784882456.

Subtracting from 320545032 its reverse (230545023), we obtain a palindrome (90000009).

The spelling of 320545032 in words is "three hundred twenty million, five hundred forty-five thousand, thirty-two".