It is an unprimeable number.
21118880 is an apocalyptic number.
1118880 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 1118880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1118880 is a wasteful number, since it uses less digits than its factorization.
1118880 is an evil number, because the sum of its binary digits is even.
The square root of 1118880 is about 1057.7712418099. The cubic root of 1118880 is about 103.8152538644.
The spelling of 1118880 in words is "one million, one hundred eighteen thousand, eight hundred eighty".