2384742809 has 2 divisors, whose sum is σ = 2384742810. Its totient is φ = 2384742808.

The previous prime is 2384742751. The next prime is 2384742827. The reversal of 2384742809 is 9082474832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2296326400 + 88416409 = 47920^2 + 9403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2384742809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2384742869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1192371404 + 1192371405.

It is an arithmetic number, because the mean of its divisors is an integer number (1192371405).

Almost surely, 2^2384742809 is an apocalyptic number.

It is an amenable number.

2384742809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2384742809 is an equidigital number, since it uses as much as digits as its factorization.

2384742809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 2384742809 is about 48833.8285310501. The cubic root of 2384742809 is about 1336.0227372590.

The spelling of 2384742809 in words is "two billion, three hundred eighty-four million, seven hundred forty-two thousand, eight hundred nine".