2744309 has 2 divisors, whose sum is σ = 2744310. Its totient is φ = 2744308.

The previous prime is 2744297. The next prime is 2744317. The reversal of 2744309 is 9034472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 103684 = 1625^2 + 322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2744309 is a 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 (2744359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372154 + 1372155.

It is an arithmetic number, because the mean of its divisors is an integer number (1372155).

2^2744309 is an apocalyptic number.

It is an amenable number.

2744309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2744309 is an equidigital number, since it uses as much as digits as its factorization.

2744309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 2744309 is about 1656.5956054511. The cubic root of 2744309 is about 140.0052549048.

The spelling of 2744309 in words is "two million, seven hundred forty-four thousand, three hundred nine".