Adding to 103440 its reverse (44301), we get a palindrome (147741).
It is a tau number, because it is divible by the number of its divisors (40).
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103440.
It is an unprimeable number.
2103440 is an apocalyptic number.
103440 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 103440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
103440 is a wasteful number, since it uses less digits than its factorization.
103440 is an odious number, because the sum of its binary digits is odd.
The square root of 103440 is about 321.6208948436. The cubic root of 103440 is about 46.9421349138.
The spelling of 103440 in words is "one hundred three thousand, four hundred forty", and thus it is an iban number.