198516844 has 12 divisors (see below), whose sum is σ = 350778064. Its totient is φ = 98294544.

The previous prime is 198516833. The next prime is 198516847. The reversal of 198516844 is 448615891.

It is a junction number, because it is equal to n+sod(n) for n = 198516794 and 198516803.

It is not an unprimeable number, because it can be changed into a prime (198516847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 240507 + ... + 241330.

Almost surely, 2^198516844 is an apocalyptic number.

It is an amenable number.

198516844 is a deficient number, since it is larger than the sum of its proper divisors (152261220).

198516844 is a wasteful number, since it uses less digits than its factorization.

198516844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481944 (or 481942 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 198516844 is about 14089.6005621167. The cubic root of 198516844 is about 583.3543679671.

The spelling of 198516844 in words is "one hundred ninety-eight million, five hundred sixteen thousand, eight hundred forty-four".