199994694 has 32 divisors (see below), whose sum is σ = 411713280. Its totient is φ = 64719072.

The previous prime is 199994693. The next prime is 199994699. The reversal of 199994694 is 496499991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199994693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150967 + ... + 152285.

It is an arithmetic number, because the mean of its divisors is an integer number (12866040).

Almost surely, 2^199994694 is an apocalyptic number.

199994694 is an abundant number, since it is smaller than the sum of its proper divisors (211718586).

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

199994694 is a wasteful number, since it uses less digits than its factorization.

199994694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044.

The product of its digits is 5668704, while the sum is 60.

The square root of 199994694 is about 14141.9480270577. The cubic root of 199994694 is about 584.7983759841.

The spelling of 199994694 in words is "one hundred ninety-nine million, nine hundred ninety-four thousand, six hundred ninety-four".