Subtracting from 842 its sum of digits (14), we obtain a palindrome (828).
842 is nontrivially palindromic in base 11.
842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
842 is an undulating number in base 11.
It is a plaindrome in base 9 and base 16.
It is a nialpdrome in base 10 and base 14.
It is an unprimeable number.
2842 is an apocalyptic number.
842 is a wasteful number, since it uses less digits than its factorization.
842 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 423.
The square root of 842 is about 29.0172362571. The cubic root of 842 is about 9.4428704284.
The spelling of 842 in words is "eight hundred forty-two", and thus it is an aban number.