194388 has 24 divisors (see below), whose sum is σ = 460992. Its totient is φ = 63744.

The previous prime is 194377. The next prime is 194413. The reversal of 194388 is 883491.

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 194388.

It is an unprimeable number.

194388 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 7 ways as a sum of consecutive naturals, for example, 1081 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (19208).

2¹⁹⁴³⁸⁸ is an apocalyptic number.

It is an amenable number.

194388 is an abundant number, since it is smaller than the sum of its proper divisors (266604).

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

194388 is a wasteful number, since it uses less digits than its factorization.

194388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 194388 is about 440.8945452146. The cubic root of 194388 is about 57.9281710896.

The spelling of 194388 in words is "one hundred ninety-four thousand, three hundred eighty-eight".