4224225 has 24 divisors (see below), whose sum is σ = 7049152. Its totient is φ = 2232000.

The previous prime is 4224197. The next prime is 4224229. The reversal of 4224225 is 5224224.

It is not a de Polignac number, because 4224225 - 2⁶ = 4224161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4224229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11139 + ... + 11511.

Almost surely, 2^4224225 is an apocalyptic number.

It is an amenable number.

4224225 is a deficient number, since it is larger than the sum of its proper divisors (2824927).

4224225 is a wasteful number, since it uses less digits than its factorization.

4224225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its digits is 1280, while the sum is 21.

The square root of 4224225 is about 2055.2919500645. The cubic root of 4224225 is about 161.6524709728.

Adding to 4224225 its reverse (5224224), we get a palindrome (9448449).

Subtracting 4224225 from its reverse (5224224), we obtain a palindrome (999999).

The spelling of 4224225 in words is "four million, two hundred twenty-four thousand, two hundred twenty-five".