4440239 has 2 divisors, whose sum is σ = 4440240. Its totient is φ = 4440238.

The previous prime is 4440221. The next prime is 4440253. The reversal of 4440239 is 9320444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4440239 - 2¹² = 4436143 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4440209) 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 as a sum of consecutive naturals, namely, 2220119 + 2220120.

It is an arithmetic number, because the mean of its divisors is an integer number (2220120).

Almost surely, 2^4440239 is an apocalyptic number.

4440239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4440239 is an equidigital number, since it uses as much as digits as its factorization.

4440239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 4440239 is about 2107.1874619976. The cubic root of 4440239 is about 164.3622643344.

The spelling of 4440239 in words is "four million, four hundred forty thousand, two hundred thirty-nine".