199949056 has 18 divisors (see below), whose sum is σ = 399117572. Its totient is φ = 99974400.

The previous prime is 199949041. The next prime is 199949063. The reversal of 199949056 is 650949991.

It is a super-2 number, since 2×199949056² = 79959249990582272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199948994 and 199949012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390270 + ... + 390781.

Almost surely, 2^199949056 is an apocalyptic number.

199949056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

199949056 is a deficient number, since it is larger than the sum of its proper divisors (199168516).

199949056 is an frugal number, since it uses more digits than its factorization.

199949056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781067 (or 781053 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 199949056 is about 14140.3343666266. The cubic root of 199949056 is about 584.7538897062.

The spelling of 199949056 in words is "one hundred ninety-nine million, nine hundred forty-nine thousand, fifty-six".