4220445252 has 48 divisors (see below), whose sum is σ = 9922977792. Its totient is φ = 1396098720.

The previous prime is 4220445239. The next prime is 4220445259. The reversal of 4220445252 is 2525440224.

It is not an unprimeable number, because it can be changed into a prime (4220445259) 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 in 15 ways as a sum of consecutive naturals, for example, 1068393 + ... + 1072335.

It is an arithmetic number, because the mean of its divisors is an integer number (206728704).

Almost surely, 2^4220445252 is an apocalyptic number.

It is an amenable number.

4220445252 is an abundant number, since it is smaller than the sum of its proper divisors (5702532540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4220445252 is a wasteful number, since it uses less digits than its factorization.

4220445252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608 (or 4606 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 4220445252 is about 64964.9540290763. The cubic root of 4220445252 is about 1616.0424217085.

Adding to 4220445252 its reverse (2525440224), we get a palindrome (6745885476).

The spelling of 4220445252 in words is "four billion, two hundred twenty million, four hundred forty-five thousand, two hundred fifty-two".