328274988 has 12 divisors (see below), whose sum is σ = 765975000. Its totient is φ = 109424992.

The previous prime is 328274971. The next prime is 328274993. The reversal of 328274988 is 889472823.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 328274988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13678113 + ... + 13678136.

It is an arithmetic number, because the mean of its divisors is an integer number (63831250).

Almost surely, 2^328274988 is an apocalyptic number.

It is an amenable number.

328274988 is an abundant number, since it is smaller than the sum of its proper divisors (437700012).

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

328274988 is a wasteful number, since it uses less digits than its factorization.

328274988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27356256 (or 27356254 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 328274988 is about 18118.3605218574. The cubic root of 328274988 is about 689.8361215516.

The spelling of 328274988 in words is "three hundred twenty-eight million, two hundred seventy-four thousand, nine hundred eighty-eight".