It is a congruent number.
It is an unprimeable number.
Almost surely, 2999411448 is an apocalyptic number.
999411448 is a gapful number since it is divisible by the number (98) 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 999411448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093244040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
999411448 is an frugal number, since it uses more digits than its factorization.
999411448 is an evil number, because the sum of its binary digits is even.
The square root of 999411448 is about 31613.4694078331. The cubic root of 999411448 is about 999.8037774992.
The spelling of 999411448 in words is "nine hundred ninety-nine million, four hundred eleven thousand, four hundred forty-eight".