It is a tau number, because it is divible by the number of its divisors (40).
It is a nialpdrome in base 14.
227440 is an apocalyptic number.
27440 is a gapful number since it is divisible by the number (20) 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 27440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27440 is an equidigital number, since it uses as much as digits as its factorization.
27440 is an odious number, because the sum of its binary digits is odd.
The square root of 27440 is about 165.6502339268. The cubic root of 27440 is about 30.1620856604.
The spelling of 27440 in words is "twenty-seven thousand, four hundred forty", and thus it is an iban number.