9228218688 has 84 divisors (see below), whose sum is σ = 28485739828. Its totient is φ = 2839449600.

The previous prime is 9228218687. The next prime is 9228218689. The reversal of 9228218688 is 8868128229.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9228218687) and next prime (9228218689).

It can be written as a sum of positive squares in 2 ways, for example, as 2404137024 + 6824081664 = 49032^2 + 82608^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9228218683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608713 + ... + 623688.

Almost surely, 2^9228218688 is an apocalyptic number.

It is an amenable number.

9228218688 is an abundant number, since it is smaller than the sum of its proper divisors (19257521140).

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

9228218688 is a wasteful number, since it uses less digits than its factorization.

9228218688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232432 (or 1232419 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The square root of 9228218688 is about 96063.6179206259. The cubic root of 9228218688 is about 2097.5192693054.

The spelling of 9228218688 in words is "nine billion, two hundred twenty-eight million, two hundred eighteen thousand, six hundred eighty-eight".