2266309809 has 12 divisors (see below), whose sum is σ = 3353402052. Its totient is φ = 1474022400.

The previous prime is 2266309789. The next prime is 2266309813. The reversal of 2266309809 is 9089036622.

2266309809 is a `hidden beast` number, since 2 + 2 + 6 + 630 + 9 + 8 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1149413409 + 1116896400 = 33903^2 + 33420^2 .

It is not a de Polignac number, because 2266309809 - 2⁸ = 2266309553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2266309879) 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 in 11 ways as a sum of consecutive naturals, for example, 3070512 + ... + 3071249.

It is an arithmetic number, because the mean of its divisors is an integer number (279450171).

Almost surely, 2^2266309809 is an apocalyptic number.

It is an amenable number.

2266309809 is a deficient number, since it is larger than the sum of its proper divisors (1087092243).

2266309809 is a wasteful number, since it uses less digits than its factorization.

2266309809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141808 (or 6141805 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 2266309809 is about 47605.7749543057. The cubic root of 2266309809 is about 1313.5292841448.

The spelling of 2266309809 in words is "two billion, two hundred sixty-six million, three hundred nine thousand, eight hundred nine".