320432 has 20 divisors (see below), whose sum is σ = 709776. Its totient is φ = 137280.

The previous prime is 320431. The next prime is 320449. The reversal of 320432 is 234023.

It is a Harshad number since it is a multiple of its sum of digits (14).

320432 is a modest number, since divided by 432 gives 320 as remainder.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320432.

It is not an unprimeable number, because it can be changed into a prime (320431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319 + ... + 1542.

2³²⁰⁴³² is an apocalyptic number.

It is an amenable number.

320432 is an abundant number, since it is smaller than the sum of its proper divisors (389344).

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

320432 is a wasteful number, since it uses less digits than its factorization.

320432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2870 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 320432 is about 566.0671338278. The cubic root of 320432 is about 68.4298035937.

Adding to 320432 its reverse (234023), we get a palindrome (554455).

The spelling of 320432 in words is "three hundred twenty thousand, four hundred thirty-two".