2266640449 has 2 divisors, whose sum is σ = 2266640450. Its totient is φ = 2266640448.

The previous prime is 2266640401. The next prime is 2266640459. The reversal of 2266640449 is 9440466622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1698676225 + 567964224 = 41215^2 + 23832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2266640449 - 2¹¹ = 2266638401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2266640459) by changing a digit.

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 as a sum of consecutive naturals, namely, 1133320224 + 1133320225.

It is an arithmetic number, because the mean of its divisors is an integer number (1133320225).

Almost surely, 2^2266640449 is an apocalyptic number.

It is an amenable number.

2266640449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266640449 is an equidigital number, since it uses as much as digits as its factorization.

2266640449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 43.

The square root of 2266640449 is about 47609.2475155825. The cubic root of 2266640449 is about 1313.5931595252.

The spelling of 2266640449 in words is "two billion, two hundred sixty-six million, six hundred forty thousand, four hundred forty-nine".