Adding to 4242 its reverse (2424), we get a palindrome (6666).
It is a d-powerful number, because it can be written as 42 + 46 + 2 + 27 .
4242 is an undulating number in base 10.
It is a plaindrome in base 12 and base 15.
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 4242.
24242 is an apocalyptic number.
4242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4242 is a wasteful number, since it uses less digits than its factorization.
4242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113.
The square root of 4242 is about 65.1306379517. The cubic root of 4242 is about 16.1878891346.
The spelling of 4242 in words is "four thousand, two hundred forty-two", and thus it is an iban number.