8243223428 has 24 divisors (see below), whose sum is σ = 15739405920. Its totient is φ = 3746361920.

The previous prime is 8243223383. The next prime is 8243223431.

8243223428 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8243223391 and 8243223400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487703 + ... + 504321.

It is an arithmetic number, because the mean of its divisors is an integer number (655808580).

Almost surely, 2^8243223428 is an apocalyptic number.

It is an amenable number.

8243223428 is a deficient number, since it is larger than the sum of its proper divisors (7496182492).

8243223428 is a wasteful number, since it uses less digits than its factorization.

8243223428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27907 (or 27905 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 8243223428 is about 90792.1991582977. The cubic root of 8243223428 is about 2020.0666112073.

The spelling of 8243223428 in words is "eight billion, two hundred forty-three million, two hundred twenty-three thousand, four hundred twenty-eight".