199919692 has 48 divisors (see below), whose sum is σ = 412695808. Its totient is φ = 82969920.

The previous prime is 199919689. The next prime is 199919701. The reversal of 199919692 is 296919991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113563 + ... + 115309.

Almost surely, 2^199919692 is an apocalyptic number.

It is an amenable number.

199919692 is an abundant number, since it is smaller than the sum of its proper divisors (212776116).

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

199919692 is a wasteful number, since it uses less digits than its factorization.

199919692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1884 counting only the distinct ones).

The product of its digits is 708588, while the sum is 55.

The square root of 199919692 is about 14139.2960220797. The cubic root of 199919692 is about 584.7252631580.

The spelling of 199919692 in words is "one hundred ninety-nine million, nine hundred nineteen thousand, six hundred ninety-two".