199964994 has 8 divisors (see below), whose sum is σ = 399930000. Its totient is φ = 66654996.

The previous prime is 199964993. The next prime is 199965019. The reversal of 199964994 is 499469991.

It is a sphenic number, since it is the product of 3 distinct primes.

199964994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (199964993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16663744 + ... + 16663755.

It is an arithmetic number, because the mean of its divisors is an integer number (49991250).

Almost surely, 2^199964994 is an apocalyptic number.

199964994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

199964994 is a wasteful number, since it uses less digits than its factorization.

199964994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33327504.

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

The square root of 199964994 is about 14140.8979205707. The cubic root of 199964994 is about 584.7694262634.

The spelling of 199964994 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, nine hundred ninety-four".