4423056644 has 12 divisors (see below), whose sum is σ = 7741703004. Its totient is φ = 2211141504.

The previous prime is 4423056613. The next prime is 4423056691. The reversal of 4423056644 is 4466503244.

It can be written as a sum of positive squares in 2 ways, for example, as 4009422400 + 413634244 = 63320^2 + 20338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4423056598 and 4423056607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70169 + ... + 117344.

It is an arithmetic number, because the mean of its divisors is an integer number (645141917).

Almost surely, 2^4423056644 is an apocalyptic number.

It is an amenable number.

4423056644 is a deficient number, since it is larger than the sum of its proper divisors (3318646360).

4423056644 is a wasteful number, since it uses less digits than its factorization.

4423056644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193414 (or 193412 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

The square root of 4423056644 is about 66506.0647159340. The cubic root of 4423056644 is about 1641.4997984336.

Adding to 4423056644 its reverse (4466503244), we get a palindrome (8889559888).

The spelling of 4423056644 in words is "four billion, four hundred twenty-three million, fifty-six thousand, six hundred forty-four".