4424239 has 2 divisors, whose sum is σ = 4424240. Its totient is φ = 4424238.

The previous prime is 4424213. The next prime is 4424249. The reversal of 4424239 is 9324244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4424239 - 2⁷ = 4424111 is a prime.

4424239 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4424209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2212119 + 2212120.

It is an arithmetic number, because the mean of its divisors is an integer number (2212120).

Almost surely, 2^4424239 is an apocalyptic number.

4424239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4424239 is an equidigital number, since it uses as much as digits as its factorization.

4424239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

The square root of 4424239 is about 2103.3875059057. The cubic root of 4424239 is about 164.1646052060.

The spelling of 4424239 in words is "four million, four hundred twenty-four thousand, two hundred thirty-nine".