199839222 has 24 divisors (see below), whose sum is σ = 472347720. Its totient is φ = 60557280.

The previous prime is 199839209. The next prime is 199839271. The reversal of 199839222 is 222938991.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504447 + ... + 504842.

It is an arithmetic number, because the mean of its divisors is an integer number (19681155).

Almost surely, 2^199839222 is an apocalyptic number.

199839222 is an abundant number, since it is smaller than the sum of its proper divisors (272508498).

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

199839222 is a wasteful number, since it uses less digits than its factorization.

199839222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009308 (or 1009305 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 199839222 is about 14136.4501201681. The cubic root of 199839222 is about 584.6467997244.

The spelling of 199839222 in words is "one hundred ninety-nine million, eight hundred thirty-nine thousand, two hundred twenty-two".