328199328 has 72 divisors (see below), whose sum is σ = 973915488. Its totient is φ = 104641152.

The previous prime is 328199323. The next prime is 328199329. The reversal of 328199328 is 823991823.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (328199321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18150 + ... + 31397.

It is an arithmetic number, because the mean of its divisors is an integer number (13526604).

Almost surely, 2^328199328 is an apocalyptic number.

It is an amenable number.

328199328 is an abundant number, since it is smaller than the sum of its proper divisors (645716160).

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

328199328 is a wasteful number, since it uses less digits than its factorization.

328199328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49586 (or 49575 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 328199328 is about 18116.2724642792. The cubic root of 328199328 is about 689.7831202436.

The spelling of 328199328 in words is "three hundred twenty-eight million, one hundred ninety-nine thousand, three hundred twenty-eight".