198974216 has 32 divisors (see below), whose sum is σ = 427170240. Its totient is φ = 85115328.

The previous prime is 198974177. The next prime is 198974221. The reversal of 198974216 is 612479891.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29846 + ... + 35898.

It is an arithmetic number, because the mean of its divisors is an integer number (13349070).

Almost surely, 2^198974216 is an apocalyptic number.

It is an amenable number.

198974216 is an abundant number, since it is smaller than the sum of its proper divisors (228196024).

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

198974216 is a wasteful number, since it uses less digits than its factorization.

198974216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653 (or 6649 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 198974216 is about 14105.8220604118. The cubic root of 198974216 is about 583.8020299141.

The spelling of 198974216 in words is "one hundred ninety-eight million, nine hundred seventy-four thousand, two hundred sixteen".