4340239 has 2 divisors, whose sum is σ = 4340240. Its totient is φ = 4340238.

The previous prime is 4340233. The next prime is 4340251. The reversal of 4340239 is 9320434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4340239 - 2⁵ = 4340207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4340233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2170119 + 2170120.

It is an arithmetic number, because the mean of its divisors is an integer number (2170120).

Almost surely, 2^4340239 is an apocalyptic number.

4340239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4340239 is an equidigital number, since it uses as much as digits as its factorization.

4340239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 4340239 is about 2083.3240266459. The cubic root of 4340239 is about 163.1189992557.

The spelling of 4340239 in words is "four million, three hundred forty thousand, two hundred thirty-nine".