199881192 has 64 divisors (see below), whose sum is σ = 582768000. Its totient is φ = 57106560.

The previous prime is 199881169. The next prime is 199881193. The reversal of 199881192 is 291188991.

It is not an unprimeable number, because it can be changed into a prime (199881193) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3909 + ... + 20372.

It is an arithmetic number, because the mean of its divisors is an integer number (9105750).

Almost surely, 2^199881192 is an apocalyptic number.

199881192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199881192 is an abundant number, since it is smaller than the sum of its proper divisors (382886808).

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

199881192 is a wasteful number, since it uses less digits than its factorization.

199881192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24311 (or 24293 counting only the distinct ones).

The product of its digits is 93312, while the sum is 48.

The square root of 199881192 is about 14137.9345026068. The cubic root of 199881192 is about 584.6877258055.

The spelling of 199881192 in words is "one hundred ninety-nine million, eight hundred eighty-one thousand, one hundred ninety-two".