4444239 has 4 divisors (see below), whose sum is σ = 5925656. Its totient is φ = 2962824.

The previous prime is 4444229. The next prime is 4444241. The reversal of 4444239 is 9324444.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4444239 - 2⁵ = 4444207 is a prime.

It is a super-3 number, since 3×4444239³ (a number of 21 digits) contains 333 as substring.

It is a D-number.

It is a Duffinian number.

4444239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 740704 + ... + 740709.

It is an arithmetic number, because the mean of its divisors is an integer number (1481414).

Almost surely, 2^4444239 is an apocalyptic number.

4444239 is a deficient number, since it is larger than the sum of its proper divisors (1481417).

4444239 is a wasteful number, since it uses less digits than its factorization.

4444239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481416.

The product of its digits is 13824, while the sum is 30.

The square root of 4444239 is about 2108.1363807875. The cubic root of 4444239 is about 164.4116049018.

The spelling of 4444239 in words is "four million, four hundred forty-four thousand, two hundred thirty-nine".