199999884 has 24 divisors (see below), whose sum is σ = 533333248. Its totient is φ = 57142800.

The previous prime is 199999853. The next prime is 199999889. The reversal of 199999884 is 488999991.

It is not an unprimeable number, because it can be changed into a prime (199999889) 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, 1190392 + ... + 1190559.

Almost surely, 2^199999884 is an apocalyptic number.

199999884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199999884 is an abundant number, since it is smaller than the sum of its proper divisors (333333364).

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

199999884 is a wasteful number, since it uses less digits than its factorization.

199999884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380965 (or 2380963 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 66.

The square root of 199999884 is about 14142.1315225110. The cubic root of 199999884 is about 584.8034345805.

The spelling of 199999884 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred eighty-four".