4240279 has 2 divisors, whose sum is σ = 4240280. Its totient is φ = 4240278.

The previous prime is 4240277. The next prime is 4240289. The reversal of 4240279 is 9720424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4240279 - 2¹ = 4240277 is a prime.

Together with 4240277, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4240277) 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, 2120139 + 2120140.

It is an arithmetic number, because the mean of its divisors is an integer number (2120140).

Almost surely, 2^4240279 is an apocalyptic number.

4240279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240279 is an equidigital number, since it uses as much as digits as its factorization.

4240279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 4240279 is about 2059.1937742719. The cubic root of 4240279 is about 161.8569967009.

The spelling of 4240279 in words is "four million, two hundred forty thousand, two hundred seventy-nine".