It is a semiprime because it is the product of two primes.
It is an unprimeable number.
210042 is an apocalyptic number.
10042 is an equidigital number, since it uses as much as digits as its factorization.
10042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5023.
The square root of 10042 is about 100.2097799618. The cubic root of 10042 is about 21.5744668573.
Adding to 10042 its reverse (24001), we get a palindrome (34043).
The spelling of 10042 in words is "ten thousand, forty-two", and thus it is an iban number.