198475164 has 24 divisors (see below), whose sum is σ = 514565520. Its totient is φ = 66158352.

The previous prime is 198475127. The next prime is 198475177. The reversal of 198475164 is 461574891.

198475164 is a `hidden beast` number, since 1 + 98 + 47 + 516 + 4 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 918759 + ... + 918974.

It is an arithmetic number, because the mean of its divisors is an integer number (21440230).

Almost surely, 2^198475164 is an apocalyptic number.

It is an amenable number.

198475164 is an abundant number, since it is smaller than the sum of its proper divisors (316090356).

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

198475164 is a wasteful number, since it uses less digits than its factorization.

198475164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837746 (or 1837738 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 198475164 is about 14088.1213793749. The cubic root of 198475164 is about 583.3135386662.

The spelling of 198475164 in words is "one hundred ninety-eight million, four hundred seventy-five thousand, one hundred sixty-four".