It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
10440 is an undulating number in base 12.
It is an unprimeable number.
10440 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
210440 is an apocalyptic number.
10440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
10440 is the 144-th triangular number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 10440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10440 is a wasteful number, since it uses less digits than its factorization.
10440 is an odious number, because the sum of its binary digits is odd.
The square root of 10440 is about 102.1763181956. The cubic root of 10440 is about 21.8558062931.
Adding to 10440 its reverse (4401), we get a palindrome (14841).
The spelling of 10440 in words is "ten thousand, four hundred forty", and thus it is an iban number.