It is a nude number because it is divisible by every one of its digits.
12444 is an undulating number in base 11.
It is a plaindrome in base 10.
It is a congruent number.
It is an unprimeable number.
12444 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
212444 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 12444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12444 is a wasteful number, since it uses less digits than its factorization.
12444 is an evil number, because the sum of its binary digits is even.
The square root of 12444 is about 111.5526781391. The cubic root of 12444 is about 23.1732350875.
Adding to 12444 its reverse (44421), we get a palindrome (56865).
The spelling of 12444 in words is "twelve thousand, four hundred forty-four", and thus it is an iban number.