199790322 has 16 divisors (see below), whose sum is σ = 403538112. Its totient is φ = 65937200.

The previous prime is 199790303. The next prime is 199790323. The reversal of 199790322 is 223097991.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (199790323) 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, 164238 + ... + 165449.

It is an arithmetic number, because the mean of its divisors is an integer number (25221132).

Almost surely, 2^199790322 is an apocalyptic number.

199790322 is an abundant number, since it is smaller than the sum of its proper divisors (203747790).

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

199790322 is a wasteful number, since it uses less digits than its factorization.

199790322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329793.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 199790322 is about 14134.7204429377. The cubic root of 199790322 is about 584.5991087849.

The spelling of 199790322 in words is "one hundred ninety-nine million, seven hundred ninety thousand, three hundred twenty-two".