It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a nialpdrome in base 8 and base 13.
It is a congruent number.
It is an unprimeable number.
14040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
214040 is an apocalyptic number.
14040 is a gapful number since it is divisible by the number (10) 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 14040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
14040 is a wasteful number, since it uses less digits than its factorization.
14040 is an evil number, because the sum of its binary digits is even.
The square root of 14040 is about 118.4905059488. The cubic root of 14040 is about 24.1243545515.
Adding to 14040 its reverse (4041), we get a palindrome (18081).
Subtracting from 14040 its reverse (4041), we obtain a palindrome (9999).
The spelling of 14040 in words is "fourteen thousand, forty", and thus it is an iban number.