198218032 has 20 divisors (see below), whose sum is σ = 404261080. Its totient is φ = 93892608.

The previous prime is 198218029. The next prime is 198218047. The reversal of 198218032 is 230812891.

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 3 ways as a sum of consecutive naturals, for example, 325713 + ... + 326320.

It is an arithmetic number, because the mean of its divisors is an integer number (20213054).

Almost surely, 2^198218032 is an apocalyptic number.

It is an amenable number.

198218032 is an abundant number, since it is smaller than the sum of its proper divisors (206043048).

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

198218032 is a wasteful number, since it uses less digits than its factorization.

198218032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652060 (or 652054 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 198218032 is about 14078.9925775959. The cubic root of 198218032 is about 583.0615283014.

The spelling of 198218032 in words is "one hundred ninety-eight million, two hundred eighteen thousand, thirty-two".