198816880 has 20 divisors (see below), whose sum is σ = 462249432. Its totient is φ = 79526720.

The previous prime is 198816859. The next prime is 198816901. The reversal of 198816880 is 88618891.

It is an interprime number because it is at equal distance from previous prime (198816859) and next prime (198816901).

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242526 + ... + 1242685.

Almost surely, 2^198816880 is an apocalyptic number.

198816880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198816880 is an abundant number, since it is smaller than the sum of its proper divisors (263432552).

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

198816880 is a wasteful number, since it uses less digits than its factorization.

198816880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485224 (or 2485218 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 49.

The square root of 198816880 is about 14100.2439695205. The cubic root of 198816880 is about 583.6481116507.

The spelling of 198816880 in words is "one hundred ninety-eight million, eight hundred sixteen thousand, eight hundred eighty".