328502220 has 96 divisors (see below), whose sum is σ = 977453568. Its totient is φ = 82148352.

The previous prime is 328502201. The next prime is 328502221. The reversal of 328502220 is 22205823.

It is not an unprimeable number, because it can be changed into a prime (328502221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451497 + ... + 452223.

It is an arithmetic number, because the mean of its divisors is an integer number (10181808).

Almost surely, 2^328502220 is an apocalyptic number.

328502220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328502220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488726784).

328502220 is an abundant number, since it is smaller than the sum of its proper divisors (648951348).

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

328502220 is a wasteful number, since it uses less digits than its factorization.

328502220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 328502220 is about 18124.6302031241. The cubic root of 328502220 is about 689.9952530654.

The spelling of 328502220 in words is "three hundred twenty-eight million, five hundred two thousand, two hundred twenty".