199044 has 48 divisors (see below), whose sum is σ = 548800. Its totient is φ = 62208.

The previous prime is 199039. The next prime is 199049. The reversal of 199044 is 440991.

It is an interprime number because it is at equal distance from previous prime (199039) and next prime (199049).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 198999 and 199017.

It is not an unprimeable number, because it can be changed into a prime (199049) by changing a digit.

199044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2004 + ... + 2100.

2¹⁹⁹⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274400).

199044 is an abundant number, since it is smaller than the sum of its proper divisors (349756).

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

199044 is a wasteful number, since it uses less digits than its factorization.

199044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 199044 is about 446.1434746805. The cubic root of 199044 is about 58.3870272054.

The spelling of 199044 in words is "one hundred ninety-nine thousand, forty-four".