It is a happy number.
13299990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a congruent number.
Almost surely, 213299990 is an apocalyptic number.
13299990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 13299990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17853696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13299990 is a wasteful number, since it uses less digits than its factorization.
13299990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1045.
The square root of 13299990 is about 3646.9151347406. The cubic root of 13299990 is about 236.9283908351.
The spelling of 13299990 in words is "thirteen million, two hundred ninety-nine thousand, nine hundred ninety".