2304209709 has 6 divisors (see below), whose sum is σ = 3328302926. Its totient is φ = 1536139800.

The previous prime is 2304209707. The next prime is 2304209771. The reversal of 2304209709 is 9079024032.

It can be written as a sum of positive squares in only one way, i.e., 1413008100 + 891201609 = 37590^2 + 29853^2 .

It is not a de Polignac number, because 2304209709 - 2¹ = 2304209707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2304209707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128011642 + ... + 128011659.

Almost surely, 2^2304209709 is an apocalyptic number.

It is an amenable number.

2304209709 is a deficient number, since it is larger than the sum of its proper divisors (1024093217).

2304209709 is a wasteful number, since it uses less digits than its factorization.

2304209709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256023307 (or 256023304 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 2304209709 is about 48002.1844190449. The cubic root of 2304209709 is about 1320.8109703249.

The spelling of 2304209709 in words is "two billion, three hundred four million, two hundred nine thousand, seven hundred nine".