2206340305 has 8 divisors (see below), whose sum is σ = 2851270632. Its totient is φ = 1629297408.

The previous prime is 2206340273. The next prime is 2206340333. The reversal of 2206340305 is 5030436022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 189971089 + 2016369216 = 13783^2 + 44904^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2206340305 - 2⁵ = 2206340273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2206340305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16971784 + ... + 16971913.

It is an arithmetic number, because the mean of its divisors is an integer number (356408829).

Almost surely, 2^2206340305 is an apocalyptic number.

It is an amenable number.

2206340305 is a deficient number, since it is larger than the sum of its proper divisors (644930327).

2206340305 is a wasteful number, since it uses less digits than its factorization.

2206340305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33943715.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2206340305 is about 46971.6968503374. The cubic root of 2206340305 is about 1301.8396646443.

Adding to 2206340305 its reverse (5030436022), we get a palindrome (7236776327).

The spelling of 2206340305 in words is "two billion, two hundred six million, three hundred forty thousand, three hundred five".