It is a happy number.
21199520 is an apocalyptic number.
1199520 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 1199520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520882).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1199520 is a wasteful number, since it uses less digits than its factorization.
1199520 is an evil number, because the sum of its binary digits is even.
The square root of 1199520 is about 1095.2260040740. The cubic root of 1199520 is about 106.2516862477.
The spelling of 1199520 in words is "one million, one hundred ninety-nine thousand, five hundred twenty".