199194628 has 12 divisors (see below), whose sum is σ = 363746880. Its totient is φ = 95266952.

The previous prime is 199194587. The next prime is 199194631. The reversal of 199194628 is 826491991.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082488 + ... + 1082671.

It is an arithmetic number, because the mean of its divisors is an integer number (30312240).

Almost surely, 2^199194628 is an apocalyptic number.

It is an amenable number.

199194628 is a deficient number, since it is larger than the sum of its proper divisors (164552252).

199194628 is a wasteful number, since it uses less digits than its factorization.

199194628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165186 (or 2165184 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 199194628 is about 14113.6327003362. The cubic root of 199194628 is about 584.0175176143.

The spelling of 199194628 in words is "one hundred ninety-nine million, one hundred ninety-four thousand, six hundred twenty-eight".