It is a zygodrome in base 4.
It is a self number, because there is not a number n which added to its sum of digits gives 99942400.
It is a congruent number.
Almost surely, 299942400 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 99942400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125959231).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99942400 is an frugal number, since it uses more digits than its factorization.
99942400 is an evil number, because the sum of its binary digits is even.
The square root of 99942400 is about 9997.1195851605. The cubic root of 99942400 is about 464.0697477394.
The spelling of 99942400 in words is "ninety-nine million, nine hundred forty-two thousand, four hundred".