199916039 has 12 divisors (see below), whose sum is σ = 212905728. Its totient is φ = 187680000.

The previous prime is 199916033. The next prime is 199916083. The reversal of 199916039 is 930619991.

It is not a de Polignac number, because 199916039 - 2⁸ = 199915783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199915984 and 199916002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199916033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173114 + ... + 174264.

It is an arithmetic number, because the mean of its divisors is an integer number (17742144).

Almost surely, 2^199916039 is an apocalyptic number.

199916039 is a deficient number, since it is larger than the sum of its proper divisors (12989689).

199916039 is a wasteful number, since it uses less digits than its factorization.

199916039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1769 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 199916039 is about 14139.1668424982. The cubic root of 199916039 is about 584.7217017040.

The spelling of 199916039 in words is "one hundred ninety-nine million, nine hundred sixteen thousand, thirty-nine".