328309984 has 96 divisors (see below), whose sum is σ = 712787040. Its totient is φ = 148242432.

The previous prime is 328309979. The next prime is 328309997. The reversal of 328309984 is 489903823.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1700992 + ... + 1701184.

It is an arithmetic number, because the mean of its divisors is an integer number (7424865).

Almost surely, 2^328309984 is an apocalyptic number.

328309984 is a gapful number since it is divisible by the number (34) 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 328309984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356393520).

328309984 is an abundant number, since it is smaller than the sum of its proper divisors (384477056).

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

328309984 is a wasteful number, since it uses less digits than its factorization.

328309984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 328309984 is about 18119.3262567900. The cubic root of 328309984 is about 689.8606341787.

The spelling of 328309984 in words is "three hundred twenty-eight million, three hundred nine thousand, nine hundred eighty-four".