199994604 has 12 divisors (see below), whose sum is σ = 466654104. Its totient is φ = 66664864.

The previous prime is 199994603. The next prime is 199994623. The reversal of 199994604 is 406499991.

199994604 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

199994604 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (199994603) 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, 8333097 + ... + 8333120.

It is an arithmetic number, because the mean of its divisors is an integer number (38887842).

Almost surely, 2^199994604 is an apocalyptic number.

It is an amenable number.

199994604 is an abundant number, since it is smaller than the sum of its proper divisors (266659500).

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

199994604 is a wasteful number, since it uses less digits than its factorization.

199994604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666224 (or 16666222 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 199994604 is about 14141.9448450346. The cubic root of 199994604 is about 584.7982882620.

The spelling of 199994604 in words is "one hundred ninety-nine million, nine hundred ninety-four thousand, six hundred four".