328288972 has 54 divisors (see below), whose sum is σ = 671098316. Its totient is φ = 140384640.

The previous prime is 328288969. The next prime is 328288981. The reversal of 328288972 is 279882823.

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 17 ways as a sum of consecutive naturals, for example, 138703 + ... + 141049.

Almost surely, 2^328288972 is an apocalyptic number.

It is an amenable number.

328288972 is an abundant number, since it is smaller than the sum of its proper divisors (342809344).

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

328288972 is a wasteful number, since it uses less digits than its factorization.

328288972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2377 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 328288972 is about 18118.7464246288. The cubic root of 328288972 is about 689.8459167251.

The spelling of 328288972 in words is "three hundred twenty-eight million, two hundred eighty-eight thousand, nine hundred seventy-two".