4238839 has 8 divisors (see below), whose sum is σ = 4651920. Its totient is φ = 3830400.

The previous prime is 4238837. The next prime is 4238851. The reversal of 4238839 is 9388324.

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

It is a cyclic number.

It is not a de Polignac number, because 4238839 - 2¹ = 4238837 is a prime.

It is a d-powerful number, because it can be written as 4¹⁰ + 2⁹ + 3¹³ + 8³ + 8³ + 3¹³ + 9² .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4238798 and 4238807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4238833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927 + ... + 3055.

It is an arithmetic number, because the mean of its divisors is an integer number (581490).

Almost surely, 2^4238839 is an apocalyptic number.

4238839 is a deficient number, since it is larger than the sum of its proper divisors (413081).

4238839 is a wasteful number, since it uses less digits than its factorization.

4238839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321.

The product of its digits is 41472, while the sum is 37.

The square root of 4238839 is about 2058.8440931746. The cubic root of 4238839 is about 161.8386723984.

The spelling of 4238839 in words is "four million, two hundred thirty-eight thousand, eight hundred thirty-nine".