328395220 has 24 divisors (see below), whose sum is σ = 690084864. Its totient is φ = 131271456.

The previous prime is 328395191. The next prime is 328395241. The reversal of 328395220 is 22593823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31957 + ... + 40963.

It is an arithmetic number, because the mean of its divisors is an integer number (28753536).

Almost surely, 2^328395220 is an apocalyptic number.

It is an amenable number.

328395220 is an abundant number, since it is smaller than the sum of its proper divisors (361689644).

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

328395220 is a wasteful number, since it uses less digits than its factorization.

328395220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839 (or 10837 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 328395220 is about 18121.6781783586. The cubic root of 328395220 is about 689.9203296657.

The spelling of 328395220 in words is "three hundred twenty-eight million, three hundred ninety-five thousand, two hundred twenty".