2222244644 has 24 divisors (see below), whose sum is σ = 3984953280. Its totient is φ = 1083759264.

The previous prime is 2222244631. The next prime is 2222244667. The reversal of 2222244644 is 4464422222.

It is a self number, because there is not a number n which added to its sum of digits gives 2222244644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119102 + ... + 136490.

It is an arithmetic number, because the mean of its divisors is an integer number (166039720).

Almost surely, 2^2222244644 is an apocalyptic number.

It is an amenable number.

2222244644 is a deficient number, since it is larger than the sum of its proper divisors (1762708636).

2222244644 is a wasteful number, since it uses less digits than its factorization.

2222244644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18179 (or 18177 counting only the distinct ones).

The product of its digits is 49152, while the sum is 32.

The square root of 2222244644 is about 47140.6898973700. The cubic root of 2222244644 is about 1304.9602692895.

Adding to 2222244644 its reverse (4464422222), we get a palindrome (6686666866).

It can be divided in two parts, 22222 and 44644, that added together give a palindrome (66866).

The spelling of 2222244644 in words is "two billion, two hundred twenty-two million, two hundred forty-four thousand, six hundred forty-four".