198320828 has 24 divisors (see below), whose sum is σ = 350048160. Its totient is φ = 98311680.

The previous prime is 198320819. The next prime is 198320831. The reversal of 198320828 is 828023891.

It is a happy number.

198320828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394025 + ... + 394527.

It is an arithmetic number, because the mean of its divisors is an integer number (14585340).

Almost surely, 2^198320828 is an apocalyptic number.

It is an amenable number.

198320828 is a deficient number, since it is larger than the sum of its proper divisors (151727332).

198320828 is a wasteful number, since it uses less digits than its factorization.

198320828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 198320828 is about 14082.6427917490. The cubic root of 198320828 is about 583.1623029118.

The spelling of 198320828 in words is "one hundred ninety-eight million, three hundred twenty thousand, eight hundred twenty-eight".