320003232 has 96 divisors (see below), whose sum is σ = 900450432. Its totient is φ = 99247104.

The previous prime is 320003221. The next prime is 320003239. The reversal of 320003232 is 232300023.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (320003239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79738 + ... + 83654.

It is an arithmetic number, because the mean of its divisors is an integer number (9379692).

Almost surely, 2^320003232 is an apocalyptic number.

320003232 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 320003232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450225216).

320003232 is an abundant number, since it is smaller than the sum of its proper divisors (580447200).

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

320003232 is a wasteful number, since it uses less digits than its factorization.

320003232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990 (or 3982 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 320003232 is about 17888.6341569165. The cubic root of 320003232 is about 683.9926814305.

Adding to 320003232 its reverse (232300023), we get a palindrome (552303255).

The spelling of 320003232 in words is "three hundred twenty million, three thousand, two hundred thirty-two".