3440309 has 2 divisors, whose sum is σ = 3440310. Its totient is φ = 3440308.

The previous prime is 3440293. The next prime is 3440323. The reversal of 3440309 is 9030443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3411409 + 28900 = 1847^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440309 - 2⁴ = 3440293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720154 + 1720155.

It is an arithmetic number, because the mean of its divisors is an integer number (1720155).

Almost surely, 2^3440309 is an apocalyptic number.

It is an amenable number.

3440309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440309 is an equidigital number, since it uses as much as digits as its factorization.

3440309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3440309 is about 1854.8069980459. The cubic root of 3440309 is about 150.9613660793.

The spelling of 3440309 in words is "three million, four hundred forty thousand, three hundred nine".