Adding to 15240 its reverse (4251), we get a palindrome (19491).
15240 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.
15240 is strictly pandigital in base 6.
15240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
215240 is an apocalyptic number.
15240 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 15240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15240 is a wasteful number, since it uses less digits than its factorization.
15240 is an odious number, because the sum of its binary digits is odd.
The square root of 15240 is about 123.4503948961. The cubic root of 15240 is about 24.7929567234.
The spelling of 15240 in words is "fifteen thousand, two hundred forty".