2229638841 has 6 divisors (see below), whose sum is σ = 3220589450. Its totient is φ = 1486425888.

The previous prime is 2229638819. The next prime is 2229638849. The reversal of 2229638841 is 1488369222.

2229638841 is a `hidden beast` number, since 2 + 2 + 2 + 9 + 638 + 8 + 4 + 1 = 666.

2229638841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1376706816 + 852932025 = 37104^2 + 29205^2 .

It is not a de Polignac number, because 2229638841 - 2²¹ = 2227541689 is a prime.

It is a super-2 number, since 2×2229638841² = 9942578722591646562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2229638849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123868816 + ... + 123868833.

Almost surely, 2^2229638841 is an apocalyptic number.

It is an amenable number.

2229638841 is a deficient number, since it is larger than the sum of its proper divisors (990950609).

2229638841 is a wasteful number, since it uses less digits than its factorization.

2229638841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247737655 (or 247737652 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 2229638841 is about 47219.0516740860. The cubic root of 2229638841 is about 1306.4060223546.

The spelling of 2229638841 in words is "two billion, two hundred twenty-nine million, six hundred thirty-eight thousand, eight hundred forty-one".