40124 is nontrivially palindromic in base 3.
40124 is an admirable number.
It is a congruent number.
240124 is an apocalyptic number.
It is an amenable number.
40124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40124 is a wasteful number, since it uses less digits than its factorization.
40124 is an odious number, because the sum of its binary digits is odd.
The square root of 40124 is about 200.3097601217. The cubic root of 40124 is about 34.2348219817.
Adding to 40124 its reverse (42104), we get a palindrome (82228).
The spelling of 40124 in words is "forty thousand, one hundred twenty-four", and thus it is an iban number.