4239385 has 8 divisors (see below), whose sum is σ = 5140296. Its totient is φ = 3356160.

The previous prime is 4239379. The next prime is 4239397. The reversal of 4239385 is 5839324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 4173849 = 256^2 + 2043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4239385 - 2⁹ = 4238873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4239385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3886 + ... + 4855.

It is an arithmetic number, because the mean of its divisors is an integer number (642537).

Almost surely, 2^4239385 is an apocalyptic number.

It is an amenable number.

4239385 is a deficient number, since it is larger than the sum of its proper divisors (900911).

4239385 is an equidigital number, since it uses as much as digits as its factorization.

4239385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843.

The product of its digits is 25920, while the sum is 34.

The square root of 4239385 is about 2058.9766875805. The cubic root of 4239385 is about 161.8456208515.

It can be divided in two parts, 4239 and 385, that added together give a square (4624 = 68²).

The spelling of 4239385 in words is "four million, two hundred thirty-nine thousand, three hundred eighty-five".