4228248644 has 6 divisors (see below), whose sum is σ = 7399435134. Its totient is φ = 2114124320.

The previous prime is 4228248641. The next prime is 4228248649. The reversal of 4228248644 is 4468428224.

It can be written as a sum of positive squares in only one way, i.e., 2505002500 + 1723246144 = 50050^2 + 41512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4228248595 and 4228248604.

It is not an unprimeable number, because it can be changed into a prime (4228248641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528531077 + ... + 528531084.

It is an arithmetic number, because the mean of its divisors is an integer number (1233239189).

Almost surely, 2^4228248644 is an apocalyptic number.

It is an amenable number.

4228248644 is a deficient number, since it is larger than the sum of its proper divisors (3171186490).

4228248644 is a wasteful number, since it uses less digits than its factorization.

4228248644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057062165 (or 1057062163 counting only the distinct ones).

The product of its digits is 786432, while the sum is 44.

The square root of 4228248644 is about 65024.9847673954. The cubic root of 4228248644 is about 1617.0378023375.

The spelling of 4228248644 in words is "four billion, two hundred twenty-eight million, two hundred forty-eight thousand, six hundred forty-four".