It is an Ulam number.
42036 is an undulating number in base 15.
It is a plaindrome in base 14.
It is a congruent number.
It is an unprimeable number.
42036 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
242036 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42036 is a wasteful number, since it uses less digits than its factorization.
42036 is an evil number, because the sum of its binary digits is even.
The square root of 42036 is about 205.0268275129. The cubic root of 42036 is about 34.7701951173.
The spelling of 42036 in words is "forty-two thousand, thirty-six", and thus it is an eban number.