Multipling 47040 by its sum of digits (15), we get a square (705600 = 8402).
47040 divided by its sum of digits (15) gives a square (3136 = 562).
47040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (84).
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 47040.
47040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
247040 is an apocalyptic number.
47040 is a gapful number since it is divisible by the number (40) 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 47040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47040 is a wasteful number, since it uses less digits than its factorization.
47040 is an evil number, because the sum of its binary digits is even.
The square root of 47040 is about 216.8870673876. The cubic root of 47040 is about 36.0984957029.
The spelling of 47040 in words is "forty-seven thousand, forty", and thus it is an iban number.