198891204 has 24 divisors (see below), whose sum is σ = 464321088. Its totient is φ = 66262560.

The previous prime is 198891197. The next prime is 198891227. The reversal of 198891204 is 402198891.

It is a super-2 number, since 2×198891204² = 79115422057139232, which contains 22 as substring.

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, 31774 + ... + 37514.

It is an arithmetic number, because the mean of its divisors is an integer number (19346712).

Almost surely, 2^198891204 is an apocalyptic number.

It is an amenable number.

198891204 is an abundant number, since it is smaller than the sum of its proper divisors (265429884).

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

198891204 is a wasteful number, since it uses less digits than its factorization.

198891204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8635 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 198891204 is about 14102.8792804874. The cubic root of 198891204 is about 583.7208312607.

The spelling of 198891204 in words is "one hundred ninety-eight million, eight hundred ninety-one thousand, two hundred four".