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 338840.
It is an unprimeable number.
2338840 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 338840, 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.
338840 is a wasteful number, since it uses less digits than its factorization.
338840 is an odious number, because the sum of its binary digits is odd.
The square root of 338840 is about 582.0996478267. The cubic root of 338840 is about 69.7158549576.
The spelling of 338840 in words is "three hundred thirty-eight thousand, eight hundred forty".