199419568 has 20 divisors (see below), whose sum is σ = 403175088. Its totient is φ = 95374400.

The previous prime is 199419557. The next prime is 199419569. The reversal of 199419568 is 865914991.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (199419569) 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, 270583 + ... + 271318.

Almost surely, 2^199419568 is an apocalyptic number.

It is an amenable number.

199419568 is an abundant number, since it is smaller than the sum of its proper divisors (203755520).

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

199419568 is a wasteful number, since it uses less digits than its factorization.

199419568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541932 (or 541926 counting only the distinct ones).

The product of its digits is 699840, while the sum is 52.

The square root of 199419568 is about 14121.5993428507. The cubic root of 199419568 is about 584.2372683231.

The spelling of 199419568 in words is "one hundred ninety-nine million, four hundred nineteen thousand, five hundred sixty-eight".