34040309 has 2 divisors, whose sum is σ = 34040310. Its totient is φ = 34040308.

The previous prime is 34040297. The next prime is 34040317. The reversal of 34040309 is 90304043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32547025 + 1493284 = 5705^2 + 1222^2 .

It is a cyclic number.

It is not a de Polignac number, because 34040309 - 2¹² = 34036213 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 (34040329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17020154 + 17020155.

It is an arithmetic number, because the mean of its divisors is an integer number (17020155).

Almost surely, 2^34040309 is an apocalyptic number.

It is an amenable number.

34040309 is a deficient number, since it is larger than the sum of its proper divisors (1).

34040309 is an equidigital number, since it uses as much as digits as its factorization.

34040309 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 34040309 is about 5834.4073392248. The cubic root of 34040309 is about 324.0891545792.

The spelling of 34040309 in words is "thirty-four million, forty thousand, three hundred nine".