199342866 has 16 divisors (see below), whose sum is σ = 404301888. Its totient is φ = 65511600.

The previous prime is 199342859. The next prime is 199342931. The reversal of 199342866 is 668243991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233545 + ... + 234396.

It is an arithmetic number, because the mean of its divisors is an integer number (25268868).

Almost surely, 2^199342866 is an apocalyptic number.

199342866 is an abundant number, since it is smaller than the sum of its proper divisors (204959022).

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

199342866 is a wasteful number, since it uses less digits than its factorization.

199342866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468017.

The product of its digits is 559872, while the sum is 48.

The square root of 199342866 is about 14118.8833127836. The cubic root of 199342866 is about 584.1623543884.

The spelling of 199342866 in words is "one hundred ninety-nine million, three hundred forty-two thousand, eight hundred sixty-six".