4224425 has 6 divisors (see below), whose sum is σ = 5238318. Its totient is φ = 3379520.

The previous prime is 4224397. The next prime is 4224427. The reversal of 4224425 is 5244224.

It can be written as a sum of positive squares in 3 ways, for example, as 107584 + 4116841 = 328^2 + 2029^2 .

It is not a de Polignac number, because 4224425 - 2⁶ = 4224361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4224425.

It is not an unprimeable number, because it can be changed into a prime (4224427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84464 + ... + 84513.

It is an arithmetic number, because the mean of its divisors is an integer number (873053).

Almost surely, 2^4224425 is an apocalyptic number.

It is an amenable number.

4224425 is a deficient number, since it is larger than the sum of its proper divisors (1013893).

4224425 is a wasteful number, since it uses less digits than its factorization.

4224425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168987 (or 168982 counting only the distinct ones).

The product of its digits is 2560, while the sum is 23.

The square root of 4224425 is about 2055.3406043768. The cubic root of 4224425 is about 161.6550221298.

Adding to 4224425 its reverse (5244224), we get a palindrome (9468649).

The spelling of 4224425 in words is "four million, two hundred twenty-four thousand, four hundred twenty-five".