2409903409 has 2 divisors, whose sum is σ = 2409903410. Its totient is φ = 2409903408.

The previous prime is 2409903317. The next prime is 2409903449. The reversal of 2409903409 is 9043099042.

It is an a-pointer prime, because the next prime (2409903449) can be obtained adding 2409903409 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2065429809 + 344473600 = 45447^2 + 18560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2409903409 - 2⁷ = 2409903281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2409903449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204951704 + 1204951705.

It is an arithmetic number, because the mean of its divisors is an integer number (1204951705).

Almost surely, 2^2409903409 is an apocalyptic number.

It is an amenable number.

2409903409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2409903409 is an equidigital number, since it uses as much as digits as its factorization.

2409903409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 2409903409 is about 49090.7670443231. The cubic root of 2409903409 is about 1340.7049474469.

The spelling of 2409903409 in words is "two billion, four hundred nine million, nine hundred three thousand, four hundred nine".