42900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a nialpdrome in base 15.
It is a self number, because there is not a number n which added to its sum of digits gives 42900.
It is a congruent number.
242900 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 42900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42900 is a wasteful number, since it uses less digits than its factorization.
42900 is an evil number, because the sum of its binary digits is even.
The square root of 42900 is about 207.1231517721. The cubic root of 42900 is about 35.0068013993.
The spelling of 42900 in words is "forty-two thousand, nine hundred".