194799638 has 16 divisors (see below), whose sum is σ = 318978000. Its totient is φ = 88485600.

The previous prime is 194799613. The next prime is 194799659. The reversal of 194799638 is 836997491.

It is a congruent number.

It is an unprimeable number.

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, 58868 + ... + 62088.

It is an arithmetic number, because the mean of its divisors is an integer number (19936125).

Almost surely, 2^194799638 is an apocalyptic number.

194799638 is a deficient number, since it is larger than the sum of its proper divisors (124178362).

194799638 is a wasteful number, since it uses less digits than its factorization.

194799638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983.

The product of its digits is 2939328, while the sum is 56.

The square root of 194799638 is about 13957.0640895569. The cubic root of 194799638 is about 579.6903202150.

The spelling of 194799638 in words is "one hundred ninety-four million, seven hundred ninety-nine thousand, six hundred thirty-eight".