194988 has 12 divisors (see below), whose sum is σ = 455000. Its totient is φ = 64992.

The previous prime is 194981. The next prime is 194989. The reversal of 194988 is 889491.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (194981) by changing a digit.

194988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 8113 + ... + 8136.

2¹⁹⁴⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

194988 is an abundant number, since it is smaller than the sum of its proper divisors (260012).

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

194988 is a wasteful number, since it uses less digits than its factorization.

194988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16256 (or 16254 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 194988 is about 441.5744557829. The cubic root of 194988 is about 57.9877104362.

The spelling of 194988 in words is "one hundred ninety-four thousand, nine hundred eighty-eight".