199991674 has 32 divisors (see below), whose sum is σ = 313632000. Its totient is φ = 95584320.

The previous prime is 199991669. The next prime is 199991677. The reversal of 199991674 is 476199991.

199991674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199991677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342152 + ... + 1342300.

It is an arithmetic number, because the mean of its divisors is an integer number (9801000).

Almost surely, 2^199991674 is an apocalyptic number.

199991674 is a deficient number, since it is larger than the sum of its proper divisors (113640326).

199991674 is a wasteful number, since it uses less digits than its factorization.

199991674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its digits is 1102248, while the sum is 55.

The square root of 199991674 is about 14141.8412521142. The cubic root of 199991674 is about 584.7954324061.

The spelling of 199991674 in words is "one hundred ninety-nine million, nine hundred ninety-one thousand, six hundred seventy-four".