199844 has 12 divisors (see below), whose sum is σ = 357504. Its totient is φ = 97704.

The previous prime is 199831. The next prime is 199853. The reversal of 199844 is 448991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (29792).

2¹⁹⁹⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

199844 is a deficient number, since it is larger than the sum of its proper divisors (157660).

199844 is a wasteful number, since it uses less digits than its factorization.

199844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1112 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 199844 is about 447.0391481738. The cubic root of 199844 is about 58.4651459170.

Subtracting from 199844 its sum of digits (35), we obtain a square (199809 = 447²).

The spelling of 199844 in words is "one hundred ninety-nine thousand, eight hundred forty-four".