4239225 has 36 divisors (see below), whose sum is σ = 7718256. Its totient is φ = 2223840.

The previous prime is 4239211. The next prime is 4239229. The reversal of 4239225 is 5229324.

4239225 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4239225 - 2⁶ = 4239161 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2⁹ + 3⁵ + 9² + 2¹³ + 2¹⁵ + 5⁵ .

It is not an unprimeable number, because it can be changed into a prime (4239229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18562 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (214396).

Almost surely, 2^4239225 is an apocalyptic number.

4239225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4239225 is a deficient number, since it is larger than the sum of its proper divisors (3479031).

4239225 is a wasteful number, since it uses less digits than its factorization.

4239225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 318 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 4239225 is about 2058.9378329615. The cubic root of 4239225 is about 161.8435847366.

Subtracting 4239225 from its reverse (5229324), we obtain a palindrome (990099).

The spelling of 4239225 in words is "four million, two hundred thirty-nine thousand, two hundred twenty-five".