2372390809 has 2 divisors, whose sum is σ = 2372390810. Its totient is φ = 2372390808.

The previous prime is 2372390759. The next prime is 2372390819. The reversal of 2372390809 is 9080932732.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2094435225 + 277955584 = 45765^2 + 16672^2 .

It is a cyclic number.

It is not a de Polignac number, because 2372390809 - 2²⁷ = 2238173081 is a prime.

It is not a weakly prime, because it can be changed into another prime (2372390819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1186195404 + 1186195405.

It is an arithmetic number, because the mean of its divisors is an integer number (1186195405).

Almost surely, 2^2372390809 is an apocalyptic number.

It is an amenable number.

2372390809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2372390809 is an equidigital number, since it uses as much as digits as its factorization.

2372390809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 2372390809 is about 48707.1946328261. The cubic root of 2372390809 is about 1333.7120579919.

The spelling of 2372390809 in words is "two billion, three hundred seventy-two million, three hundred ninety thousand, eight hundred nine".