198680808 has 32 divisors (see below), whose sum is σ = 518299200. Its totient is φ = 63347328.

The previous prime is 198680803. The next prime is 198680821. The reversal of 198680808 is 808086891.

It is not an unprimeable number, because it can be changed into a prime (198680803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179413 + ... + 180516.

It is an arithmetic number, because the mean of its divisors is an integer number (16196850).

Almost surely, 2^198680808 is an apocalyptic number.

It is an amenable number.

198680808 is an abundant number, since it is smaller than the sum of its proper divisors (319618392).

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

198680808 is a wasteful number, since it uses less digits than its factorization.

198680808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359961 (or 359957 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 198680808 is about 14095.4179789036. The cubic root of 198680808 is about 583.5149299831.

The spelling of 198680808 in words is "one hundred ninety-eight million, six hundred eighty thousand, eight hundred eight".