20196 is nontrivially palindromic in base 16.
20196 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a nialpdrome in base 12.
It is a congruent number.
It is an unprimeable number.
20196 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
220196 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 20196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20196 is a wasteful number, since it uses less digits than its factorization.
20196 is an evil number, because the sum of its binary digits is even.
The square root of 20196 is about 142.1126313879. The cubic root of 20196 is about 27.2325590497.
Adding to 20196 its reverse (69102), we get a palindrome (89298).
The spelling of 20196 in words is "twenty thousand, one hundred ninety-six".