198765882 has 24 divisors (see below), whose sum is σ = 492182496. Its totient is φ = 56790216.

The previous prime is 198765871. The next prime is 198765923. The reversal of 198765882 is 288567891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788628 + ... + 788879.

It is an arithmetic number, because the mean of its divisors is an integer number (20507604).

Almost surely, 2^198765882 is an apocalyptic number.

198765882 is an abundant number, since it is smaller than the sum of its proper divisors (293416614).

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

198765882 is a wasteful number, since it uses less digits than its factorization.

198765882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577522 (or 1577519 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 198765882 is about 14098.4354451123. The cubic root of 198765882 is about 583.5982040310.

The spelling of 198765882 in words is "one hundred ninety-eight million, seven hundred sixty-five thousand, eight hundred eighty-two".