199109682 has 24 divisors (see below), whose sum is σ = 431842320. Its totient is φ = 66302520.

The previous prime is 199109681. The next prime is 199109699. The reversal of 199109682 is 286901991.

It is a super-2 number, since 2×199109682² = 79289330932282248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199109681) 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, 14569 + ... + 24707.

It is an arithmetic number, because the mean of its divisors is an integer number (17993430).

Almost surely, 2^199109682 is an apocalyptic number.

199109682 is an abundant number, since it is smaller than the sum of its proper divisors (232732638).

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

199109682 is a wasteful number, since it uses less digits than its factorization.

199109682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11238 (or 11235 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 199109682 is about 14110.6230195552. The cubic root of 199109682 is about 583.9344882571.

It can be divided in two parts, 19910 and 9682, that added together give a palindrome (29592).

The spelling of 199109682 in words is "one hundred ninety-nine million, one hundred nine thousand, six hundred eighty-two".