8308128228 has 12 divisors (see below), whose sum is σ = 19385632560. Its totient is φ = 2769376072.

The previous prime is 8308128211. The next prime is 8308128229. The reversal of 8308128228 is 8228218038.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 8308128228.

It is not an unprimeable number, because it can be changed into a prime (8308128229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346171998 + ... + 346172021.

It is an arithmetic number, because the mean of its divisors is an integer number (1615469380).

Almost surely, 2^8308128228 is an apocalyptic number.

It is an amenable number.

8308128228 is an abundant number, since it is smaller than the sum of its proper divisors (11077504332).

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

8308128228 is a wasteful number, since it uses less digits than its factorization.

8308128228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692344026 (or 692344024 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 8308128228 is about 91148.9343218010. The cubic root of 8308128228 is about 2025.3545670249.

The spelling of 8308128228 in words is "eight billion, three hundred eight million, one hundred twenty-eight thousand, two hundred twenty-eight".