20468 is nontrivially palindromic in base 6 and base 16.
It is a plaindrome in base 5.
It is a nialpdrome in base 14.
It is a congruent number.
It is an unprimeable number.
20468 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
220468 is an apocalyptic number.
20468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20468 is a wasteful number, since it uses less digits than its factorization.
20468 is an evil number, because the sum of its binary digits is even.
The square root of 20468 is about 143.0664181421. The cubic root of 20468 is about 27.3542704280.
The spelling of 20468 in words is "twenty thousand, four hundred sixty-eight".