328220 has 12 divisors (see below), whose sum is σ = 689304. Its totient is φ = 131280.

The previous prime is 328213. The next prime is 328243. The reversal of 328220 is 22823.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328220.

It is an unprimeable number.

328220 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 3 ways as a sum of consecutive naturals, for example, 8186 + ... + 8225.

It is an arithmetic number, because the mean of its divisors is an integer number (57442).

2³²⁸²²⁰ is an apocalyptic number.

It is an amenable number.

328220 is an abundant number, since it is smaller than the sum of its proper divisors (361084).

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

328220 is a wasteful number, since it uses less digits than its factorization.

328220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16420 (or 16418 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 328220 is about 572.9048786666. The cubic root of 328220 is about 68.9797602192.

The spelling of 328220 in words is "three hundred twenty-eight thousand, two hundred twenty".