198514918 has 64 divisors (see below), whose sum is σ = 367234560. Its totient is φ = 78688512.

The previous prime is 198514891. The next prime is 198514957. The reversal of 198514918 is 819415891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1448946 + ... + 1449082.

It is an arithmetic number, because the mean of its divisors is an integer number (5738040).

Almost surely, 2^198514918 is an apocalyptic number.

198514918 is a deficient number, since it is larger than the sum of its proper divisors (168719642).

198514918 is a wasteful number, since it uses less digits than its factorization.

198514918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its digits is 103680, while the sum is 46.

The square root of 198514918 is about 14089.5322136684. The cubic root of 198514918 is about 583.3524814032.

The spelling of 198514918 in words is "one hundred ninety-eight million, five hundred fourteen thousand, nine hundred eighteen".