194004 has 36 divisors (see below), whose sum is σ = 520884. Its totient is φ = 60672.

The previous prime is 194003. The next prime is 194017. The reversal of 194004 is 400491.

It can be written as a sum of positive squares in 2 ways, for example, as 72900 + 121104 = 270^2 + 348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194003) 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 in 11 ways as a sum of consecutive naturals, for example, 454 + ... + 770.

It is an arithmetic number, because the mean of its divisors is an integer number (14469).

2¹⁹⁴⁰⁰⁴ 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 194004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260442).

194004 is an abundant number, since it is smaller than the sum of its proper divisors (326880).

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

194004 is a wasteful number, since it uses less digits than its factorization.

194004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 194004 is about 440.4588516536. The cubic root of 194004 is about 57.8900015846.

Adding to 194004 its reverse (400491), we get a palindrome (594495).

The spelling of 194004 in words is "one hundred ninety-four thousand, four".