2268622409 has 4 divisors (see below), whose sum is σ = 2402070804. Its totient is φ = 2135174016.

The previous prime is 2268622397. The next prime is 2268622417. The reversal of 2268622409 is 9042268622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2063703184 + 204919225 = 45428^2 + 14315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2268622409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2268622429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66724172 + ... + 66724205.

It is an arithmetic number, because the mean of its divisors is an integer number (600517701).

Almost surely, 2^2268622409 is an apocalyptic number.

It is an amenable number.

2268622409 is a deficient number, since it is larger than the sum of its proper divisors (133448395).

2268622409 is a wasteful number, since it uses less digits than its factorization.

2268622409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133448394.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 2268622409 is about 47630.0578311637. The cubic root of 2268622409 is about 1313.9759184573.

The spelling of 2268622409 in words is "two billion, two hundred sixty-eight million, six hundred twenty-two thousand, four hundred nine".