It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 45942.
245942 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 45942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45942 is a wasteful number, since it uses less digits than its factorization.
45942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68.
The square root of 45942 is about 214.3408500496. The cubic root of 45942 is about 35.8154131898.
The spelling of 45942 in words is "forty-five thousand, nine hundred forty-two".