199319694 has 16 divisors (see below), whose sum is σ = 455587968. Its totient is φ = 56948472.

The previous prime is 199319669. The next prime is 199319699. The reversal of 199319694 is 496913991.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199319699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2372812 + ... + 2372895.

It is an arithmetic number, because the mean of its divisors is an integer number (28474248).

Almost surely, 2^199319694 is an apocalyptic number.

199319694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199319694 is an abundant number, since it is smaller than the sum of its proper divisors (256268274).

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

199319694 is a wasteful number, since it uses less digits than its factorization.

199319694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745719.

The product of its digits is 472392, while the sum is 51.

The square root of 199319694 is about 14118.0626857937. The cubic root of 199319694 is about 584.1397187909.

The spelling of 199319694 in words is "one hundred ninety-nine million, three hundred nineteen thousand, six hundred ninety-four".