199868294 has 16 divisors (see below), whose sum is σ = 303410016. Its totient is φ = 98736000.

The previous prime is 199868293. The next prime is 199868323. The reversal of 199868294 is 492868991.

199868294 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199868293) 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, 146174 + ... + 147534.

It is an arithmetic number, because the mean of its divisors is an integer number (18963126).

Almost surely, 2^199868294 is an apocalyptic number.

199868294 is a deficient number, since it is larger than the sum of its proper divisors (103541722).

199868294 is a wasteful number, since it uses less digits than its factorization.

199868294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191.

The product of its digits is 2239488, while the sum is 56.

The square root of 199868294 is about 14137.4783465794. The cubic root of 199868294 is about 584.6751492270.

The spelling of 199868294 in words is "one hundred ninety-nine million, eight hundred sixty-eight thousand, two hundred ninety-four".