199950849 has 64 divisors (see below), whose sum is σ = 352980480. Its totient is φ = 110854656.

The previous prime is 199950841. The next prime is 199950859. The reversal of 199950849 is 948059991.

199950849 is a `hidden beast` number, since 1 + 9 + 99 + 508 + 49 = 666.

It is not a de Polignac number, because 199950849 - 2³ = 199950841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 199950795 and 199950804.

It is not an unprimeable number, because it can be changed into a prime (199950841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566257 + ... + 566609.

It is an arithmetic number, because the mean of its divisors is an integer number (5515320).

Almost surely, 2^199950849 is an apocalyptic number.

It is an amenable number.

199950849 is a deficient number, since it is larger than the sum of its proper divisors (153029631).

199950849 is an frugal number, since it uses more digits than its factorization.

199950849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The square root of 199950849 is about 14140.3977666825. The cubic root of 199950849 is about 584.7556375857.

The spelling of 199950849 in words is "one hundred ninety-nine million, nine hundred fifty thousand, eight hundred forty-nine".