328818820 has 48 divisors (see below), whose sum is σ = 779284800. Its totient is φ = 115445120.

The previous prime is 328818799. The next prime is 328818857. The reversal of 328818820 is 28818823.

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 15 ways as a sum of consecutive naturals, for example, 19390 + ... + 32149.

It is an arithmetic number, because the mean of its divisors is an integer number (16235100).

Almost surely, 2^328818820 is an apocalyptic number.

It is an amenable number.

328818820 is an abundant number, since it is smaller than the sum of its proper divisors (450465980).

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

328818820 is a wasteful number, since it uses less digits than its factorization.

328818820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51588 (or 51586 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 328818820 is about 18133.3620710557. The cubic root of 328818820 is about 690.2168470580.

The spelling of 328818820 in words is "three hundred twenty-eight million, eight hundred eighteen thousand, eight hundred twenty".