320328 has 32 divisors (see below), whose sum is σ = 890400. Its totient is φ = 106704.

The previous prime is 320317. The next prime is 320329. The reversal of 320328 is 823023.

320328 is nontrivially palindromic in base 14.

It is a super-2 number, since 2×320328² = 205220055168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 320328.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320328.

It is not an unprimeable number, because it can be changed into a prime (320329) by changing a digit.

320328 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (27825).

2³²⁰³²⁸ is an apocalyptic number.

It is an amenable number.

320328 is an abundant number, since it is smaller than the sum of its proper divisors (570072).

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

320328 is a wasteful number, since it uses less digits than its factorization.

320328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 320328 is about 565.9752644772. The cubic root of 320328 is about 68.4223995582.

The spelling of 320328 in words is "three hundred twenty thousand, three hundred twenty-eight".