199994886 has 64 divisors (see below), whose sum is σ = 547008000. Its totient is φ = 52744608.

The previous prime is 199994881. The next prime is 199994897. The reversal of 199994886 is 688499991.

199994886 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199994881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15436 + ... + 25263.

It is an arithmetic number, because the mean of its divisors is an integer number (8547000).

Almost surely, 2^199994886 is an apocalyptic number.

199994886 is an abundant number, since it is smaller than the sum of its proper divisors (347013114).

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

199994886 is a wasteful number, since it uses less digits than its factorization.

199994886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40730 (or 40724 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 199994886 is about 14141.9548153712. The cubic root of 199994886 is about 584.7985631245.

The spelling of 199994886 in words is "one hundred ninety-nine million, nine hundred ninety-four thousand, eight hundred eighty-six".