It is a happy number.
240408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
2240408 is an apocalyptic number.
240408 is a gapful number since it is divisible by the number (28) 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 240408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
240408 is a wasteful number, since it uses less digits than its factorization.
240408 is an odious number, because the sum of its binary digits is odd.
The square root of 240408 is about 490.3141849875. The cubic root of 240408 is about 62.1798454843.
The spelling of 240408 in words is "two hundred forty thousand, four hundred eight".