328021960 has 64 divisors (see below), whose sum is σ = 853027200. Its totient is φ = 111192576.

The previous prime is 328021933. The next prime is 328021979. The reversal of 328021960 is 69120823.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18339 + ... + 31501.

It is an arithmetic number, because the mean of its divisors is an integer number (13328550).

Almost surely, 2^328021960 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 328021960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426513600).

328021960 is an abundant number, since it is smaller than the sum of its proper divisors (525005240).

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

328021960 is a wasteful number, since it uses less digits than its factorization.

328021960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13270 (or 13266 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 328021960 is about 18111.3765352057. The cubic root of 328021960 is about 689.6588385564.

The spelling of 328021960 in words is "three hundred twenty-eight million, twenty-one thousand, nine hundred sixty".