198878516 has 48 divisors (see below), whose sum is σ = 378362880. Its totient is φ = 91196160.

The previous prime is 198878513. The next prime is 198878527. The reversal of 198878516 is 615878891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198878513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390470 + ... + 390978.

It is an arithmetic number, because the mean of its divisors is an integer number (7882560).

Almost surely, 2^198878516 is an apocalyptic number.

It is an amenable number.

198878516 is a deficient number, since it is larger than the sum of its proper divisors (179484364).

198878516 is a wasteful number, since it uses less digits than its factorization.

198878516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 702 counting only the distinct ones).

The product of its digits is 967680, while the sum is 53.

The square root of 198878516 is about 14102.4294360936. The cubic root of 198878516 is about 583.7084184319.

The spelling of 198878516 in words is "one hundred ninety-eight million, eight hundred seventy-eight thousand, five hundred sixteen".