199939120 has 40 divisors (see below), whose sum is σ = 477429264. Its totient is φ = 77812992.

The previous prime is 199939111. The next prime is 199939127. The reversal of 199939120 is 21939991.

199939120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (199939127) 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, 30814 + ... + 36733.

Almost surely, 2^199939120 is an apocalyptic number.

199939120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199939120 is an abundant number, since it is smaller than the sum of its proper divisors (277490144).

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

199939120 is a wasteful number, since it uses less digits than its factorization.

199939120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67597 (or 67591 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 199939120 is about 14139.9830268639. The cubic root of 199939120 is about 584.7442035541.

The spelling of 199939120 in words is "one hundred ninety-nine million, nine hundred thirty-nine thousand, one hundred twenty".