4938869221 has 24 divisors (see below), whose sum is σ = 5880382200. Its totient is φ = 4120321920.

The previous prime is 4938869219. The next prime is 4938869231. The reversal of 4938869221 is 1229688394.

4938869221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 508502500 + 4430366721 = 22550^2 + 66561^2 .

It is not a de Polignac number, because 4938869221 - 2¹ = 4938869219 is a prime.

It is a super-2 number, since 2×4938869221² = 48784858364282293682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4938869231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263055 + ... + 281203.

It is an arithmetic number, because the mean of its divisors is an integer number (245015925).

Almost surely, 2^4938869221 is an apocalyptic number.

It is an amenable number.

4938869221 is a deficient number, since it is larger than the sum of its proper divisors (941512979).

4938869221 is a wasteful number, since it uses less digits than its factorization.

4938869221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18357 (or 18346 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 4938869221 is about 70277.0888768167. The cubic root of 4938869221 is about 1702.9785408163.

The spelling of 4938869221 in words is "four billion, nine hundred thirty-eight million, eight hundred sixty-nine thousand, two hundred twenty-one".