4022538649 has 2 divisors, whose sum is σ = 4022538650. Its totient is φ = 4022538648.

The previous prime is 4022538571. The next prime is 4022538713. The reversal of 4022538649 is 9468352204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2033378649 + 1989160000 = 45093^2 + 44600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4022538649 is a prime.

It is not a weakly prime, because it can be changed into another prime (4022538349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011269324 + 2011269325.

It is an arithmetic number, because the mean of its divisors is an integer number (2011269325).

Almost surely, 2^4022538649 is an apocalyptic number.

It is an amenable number.

4022538649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4022538649 is an equidigital number, since it uses as much as digits as its factorization.

4022538649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 4022538649 is about 63423.4865724047. The cubic root of 4022538649 is about 1590.3769591311.

The spelling of 4022538649 in words is "four billion, twenty-two million, five hundred thirty-eight thousand, six hundred forty-nine".