328212500 has 216 divisors, whose sum is σ = 930940416. Its totient is φ = 99000000.

The previous prime is 328212473. The next prime is 328212539. The reversal of 328212500 is 5212823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10587485 + ... + 10587515.

Almost surely, 2^328212500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328212500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465470208).

328212500 is an abundant number, since it is smaller than the sum of its proper divisors (602727916).

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

328212500 is a wasteful number, since it uses less digits than its factorization.

328212500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 328212500 is about 18116.6360012007. The cubic root of 328212500 is about 689.7923480725.

The spelling of 328212500 in words is "three hundred twenty-eight million, two hundred twelve thousand, five hundred".