199369928 has 16 divisors (see below), whose sum is σ = 385877760. Its totient is φ = 96469200.

The previous prime is 199369889. The next prime is 199369943. The reversal of 199369928 is 829963991.

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, 401708 + ... + 402203.

It is an arithmetic number, because the mean of its divisors is an integer number (24117360).

Almost surely, 2^199369928 is an apocalyptic number.

It is an amenable number.

199369928 is a deficient number, since it is larger than the sum of its proper divisors (186507832).

199369928 is a wasteful number, since it uses less digits than its factorization.

199369928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803948 (or 803944 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 56.

The square root of 199369928 is about 14119.8416421715. The cubic root of 199369928 is about 584.1887877168.

The spelling of 199369928 in words is "one hundred ninety-nine million, three hundred sixty-nine thousand, nine hundred twenty-eight".