Adding to 2240 its reverse (422), we get a palindrome (2662).
It is a tau number, because it is divible by the number of its divisors (28).
It is a d-powerful number, because it can be written as 27 + 43 + 211 + 0 .
It is a plaindrome in base 12.
It is a nialpdrome in base 8 and base 14.
22240 is an apocalyptic number.
2240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
2240 is a droll number since its even prime factors and its odd prime factors have the same sum.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2240 is an equidigital number, since it uses as much as digits as its factorization.
2240 is an odious number, because the sum of its binary digits is odd.
The square root of 2240 is about 47.3286382648. The cubic root of 2240 is about 13.0842652408.
The spelling of 2240 in words is "two thousand, two hundred forty", and thus it is an iban number.