198328812 has 48 divisors (see below), whose sum is σ = 513133824. Its totient is φ = 59112000.

The previous prime is 198328811. The next prime is 198328847. The reversal of 198328812 is 218823891.

198328812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (198328811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4264 + ... + 20367.

It is an arithmetic number, because the mean of its divisors is an integer number (10690288).

Almost surely, 2^198328812 is an apocalyptic number.

198328812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198328812 is an abundant number, since it is smaller than the sum of its proper divisors (314805012).

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

198328812 is a wasteful number, since it uses less digits than its factorization.

198328812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24710 (or 24708 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 198328812 is about 14082.9262584166. The cubic root of 198328812 is about 583.1701284562.

The spelling of 198328812 in words is "one hundred ninety-eight million, three hundred twenty-eight thousand, eight hundred twelve".