8220434340228 has 48 divisors (see below), whose sum is σ = 20956786191936. Its totient is φ = 2487225919360.

The previous prime is 8220434340211. The next prime is 8220434340253.

8220434340228 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8220434340228.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47598351 + ... + 47770742.

It is an arithmetic number, because the mean of its divisors is an integer number (436599712332).

Almost surely, 2^{8220434340228} is an apocalyptic number.

It is an amenable number.

8220434340228 is an abundant number, since it is smaller than the sum of its proper divisors (12736351851708).

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

8220434340228 is a wasteful number, since it uses less digits than its factorization.

8220434340228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95369764 (or 95369762 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 42.

The spelling of 8220434340228 in words is "eight trillion, two hundred twenty billion, four hundred thirty-four million, three hundred forty thousand, two hundred twenty-eight".