4221008272 has 20 divisors (see below), whose sum is σ = 8807296540. Its totient is φ = 1948157568.

The previous prime is 4221008257. The next prime is 4221008293. The reversal of 4221008272 is 2728001224.

It can be written as a sum of positive squares in 2 ways, for example, as 2544597136 + 1676411136 = 50444^2 + 40944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4221008272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10146447 + ... + 10146862.

It is an arithmetic number, because the mean of its divisors is an integer number (440364827).

Almost surely, 2^4221008272 is an apocalyptic number.

It is an amenable number.

4221008272 is an abundant number, since it is smaller than the sum of its proper divisors (4586288268).

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

4221008272 is a wasteful number, since it uses less digits than its factorization.

4221008272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20293330 (or 20293324 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 4221008272 is about 64969.2871440037. The cubic root of 4221008272 is about 1616.1142801415.

Adding to 4221008272 its reverse (2728001224), we get a palindrome (6949009496).

The spelling of 4221008272 in words is "four billion, two hundred twenty-one million, eight thousand, two hundred seventy-two".