198328266 has 24 divisors (see below), whose sum is σ = 443574144. Its totient is φ = 63976680.

The previous prime is 198328261. The next prime is 198328267. The reversal of 198328266 is 662823891.

It is not an unprimeable number, because it can be changed into a prime (198328261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177156 + ... + 178271.

It is an arithmetic number, because the mean of its divisors is an integer number (18482256).

Almost surely, 2^198328266 is an apocalyptic number.

198328266 is an abundant number, since it is smaller than the sum of its proper divisors (245245878).

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

198328266 is a wasteful number, since it uses less digits than its factorization.

198328266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355466 (or 355463 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 198328266 is about 14082.9068732276. The cubic root of 198328266 is about 583.1695932992.

The spelling of 198328266 in words is "one hundred ninety-eight million, three hundred twenty-eight thousand, two hundred sixty-six".