8220441069 has 24 divisors (see below), whose sum is σ = 12778559352. Its totient is φ = 5073361920.

The previous prime is 8220441059. The next prime is 8220441077. The reversal of 8220441069 is 9601440228.

It can be written as a sum of positive squares in 4 ways, for example, as 512479044 + 7707962025 = 22638^2 + 87795^2 .

It is not a de Polignac number, because 8220441069 - 2⁵ = 8220441037 is a prime.

It is a super-2 number, since 2×8220441069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220441059) 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, 431064 + ... + 449729.

It is an arithmetic number, because the mean of its divisors is an integer number (532439973).

Almost surely, 2^8220441069 is an apocalyptic number.

It is an amenable number.

8220441069 is a deficient number, since it is larger than the sum of its proper divisors (4558118283).

8220441069 is a wasteful number, since it uses less digits than its factorization.

8220441069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880877 (or 880874 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8220441069 is about 90666.6480520814. The cubic root of 8220441069 is about 2018.2038954748.

The spelling of 8220441069 in words is "eight billion, two hundred twenty million, four hundred forty-one thousand, sixty-nine".