It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a plaindrome in base 15.
It is a congruent number.
222423 is an apocalyptic number.
22423 is a wasteful number, since it uses less digits than its factorization.
22423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1336.
The square root of 22423 is about 149.7431133642. The cubic root of 22423 is about 28.1988397155.
Adding to 22423 its reverse (32422), we get a palindrome (54845).
Subtracting 22423 from its reverse (32422), we obtain a palindrome (9999).
The spelling of 22423 in words is "twenty-two thousand, four hundred twenty-three", and thus it is an iban number.