320134432 has 12 divisors (see below), whose sum is σ = 630264726. Its totient is φ = 160067200.

The previous prime is 320134391. The next prime is 320134453. The reversal of 320134432 is 234431023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 182682256 + 137452176 = 13516^2 + 11724^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002069 + ... + 5002132.

Almost surely, 2^320134432 is an apocalyptic number.

320134432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320134432 is a deficient number, since it is larger than the sum of its proper divisors (310130294).

320134432 is a wasteful number, since it uses less digits than its factorization.

320134432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10004211 (or 10004203 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 320134432 is about 17892.3009140803. The cubic root of 320134432 is about 684.0861467139.

Adding to 320134432 its reverse (234431023), we get a palindrome (554565455).

The spelling of 320134432 in words is "three hundred twenty million, one hundred thirty-four thousand, four hundred thirty-two".