20194 has 8 divisors (see below), whose sum is σ = 31680. Its totient is φ = 9636.

The previous prime is 20183. The next prime is 20201. The reversal of 20194 is 49102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174 + ... + 265.

It is an arithmetic number, because the mean of its divisors is an integer number (3960).

2²⁰¹⁹⁴ is an apocalyptic number.

20194 is a deficient number, since it is larger than the sum of its proper divisors (11486).

20194 is a wasteful number, since it uses less digits than its factorization.

20194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 20194 is about 142.1055945415. The cubic root of 20194 is about 27.2316600777.

Adding to 20194 its reverse (49102), we get a palindrome (69296).

The spelling of 20194 in words is "twenty thousand, one hundred ninety-four".