328644680 has 256 divisors, whose sum is σ = 992839680. Its totient is φ = 94961664.

The previous prime is 328644647. The next prime is 328644683. The reversal of 328644680 is 86446823.

It is not an unprimeable number, because it can be changed into a prime (328644683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2908304 + ... + 2908416.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2^328644680 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 328644680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496419840).

328644680 is an abundant number, since it is smaller than the sum of its proper divisors (664195000).

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

328644680 is a wasteful number, since it uses less digits than its factorization.

328644680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 328644680 is about 18128.5597883561. The cubic root of 328644680 is about 690.0949809738.

The spelling of 328644680 in words is "three hundred twenty-eight million, six hundred forty-four thousand, six hundred eighty".