199738056 has 32 divisors (see below), whose sum is σ = 570680640. Its totient is φ = 57067968.

The previous prime is 199738043. The next prime is 199738057. The reversal of 199738056 is 650837991.

It is a junction number, because it is equal to n+sod(n) for n = 199737996 and 199738014.

It is not an unprimeable number, because it can be changed into a prime (199738057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594291 + ... + 594626.

It is an arithmetic number, because the mean of its divisors is an integer number (17833770).

Almost surely, 2^199738056 is an apocalyptic number.

It is an amenable number.

199738056 is an abundant number, since it is smaller than the sum of its proper divisors (370942584).

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

199738056 is a wasteful number, since it uses less digits than its factorization.

199738056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188933 (or 1188929 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 199738056 is about 14132.8714704408. The cubic root of 199738056 is about 584.5481264659.

The spelling of 199738056 in words is "one hundred ninety-nine million, seven hundred thirty-eight thousand, fifty-six".