199802992 has 20 divisors (see below), whose sum is σ = 389948256. Its totient is φ = 99171200.

The previous prime is 199802987. The next prime is 199803007. The reversal of 199802992 is 299208991.

It is a happy number.

It is a super-2 number, since 2×199802992² = 79842471224304128, which contains 22 as substring.

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, 43384 + ... + 47767.

Almost surely, 2^199802992 is an apocalyptic number.

It is an amenable number.

199802992 is a deficient number, since it is larger than the sum of its proper divisors (190145264).

199802992 is a wasteful number, since it uses less digits than its factorization.

199802992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91296 (or 91290 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 199802992 is about 14135.1686229772. The cubic root of 199802992 is about 584.6114662640.

The spelling of 199802992 in words is "one hundred ninety-nine million, eight hundred two thousand, nine hundred ninety-two".