189944 has 8 divisors (see below), whose sum is σ = 356160. Its totient is φ = 94968.

The previous prime is 189929. The next prime is 189947. The reversal of 189944 is 449981.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 189944.

It is not an unprimeable number, because it can be changed into a prime (189947) 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 as a sum of consecutive naturals, namely, 11864 + ... + 11879.

It is an arithmetic number, because the mean of its divisors is an integer number (44520).

2¹⁸⁹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

189944 is a deficient number, since it is larger than the sum of its proper divisors (166216).

189944 is a wasteful number, since it uses less digits than its factorization.

189944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23749 (or 23745 counting only the distinct ones).

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

The square root of 189944 is about 435.8256532147. The cubic root of 189944 is about 57.4833221952.

The spelling of 189944 in words is "one hundred eighty-nine thousand, nine hundred forty-four".