4389425 has 12 divisors (see below), whose sum is σ = 5469516. Its totient is φ = 3494400.

The previous prime is 4389403. The next prime is 4389439. The reversal of 4389425 is 5249834.

It can be written as a sum of positive squares in 6 ways, for example, as 579121 + 3810304 = 761^2 + 1952^2 .

It is not a de Polignac number, because 4389425 - 2⁸ = 4389169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8165 + ... + 8685.

It is an arithmetic number, because the mean of its divisors is an integer number (455793).

Almost surely, 2^4389425 is an apocalyptic number.

It is an amenable number.

4389425 is a deficient number, since it is larger than the sum of its proper divisors (1080091).

4389425 is a wasteful number, since it uses less digits than its factorization.

4389425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 863 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 4389425 is about 2095.0954632188. The cubic root of 4389425 is about 163.7328711955.

The spelling of 4389425 in words is "four million, three hundred eighty-nine thousand, four hundred twenty-five".