198328998 has 32 divisors (see below), whose sum is σ = 458793216. Its totient is φ = 55981728.

The previous prime is 198328997. The next prime is 198329039. The reversal of 198328998 is 899823891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198328993) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24961 + ... + 31932.

It is an arithmetic number, because the mean of its divisors is an integer number (14337288).

Almost surely, 2^198328998 is an apocalyptic number.

198328998 is an abundant number, since it is smaller than the sum of its proper divisors (260464218).

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

198328998 is a wasteful number, since it uses less digits than its factorization.

198328998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56988.

The product of its digits is 2239488, while the sum is 57.

The square root of 198328998 is about 14082.9328621562. The cubic root of 198328998 is about 583.1703107622.

The spelling of 198328998 in words is "one hundred ninety-eight million, three hundred twenty-eight thousand, nine hundred ninety-eight".