8243443428 has 48 divisors (see below), whose sum is σ = 20993442624. Its totient is φ = 2496807040.

The previous prime is 8243443357. The next prime is 8243443469.

8243443428 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 8243443428.

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, 281326 + ... + 309242.

It is an arithmetic number, because the mean of its divisors is an integer number (437363388).

Almost surely, 2^8243443428 is an apocalyptic number.

It is an amenable number.

8243443428 is an abundant number, since it is smaller than the sum of its proper divisors (12749999196).

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

8243443428 is a wasteful number, since it uses less digits than its factorization.

8243443428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30172 (or 30170 counting only the distinct ones).

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

The square root of 8243443428 is about 90793.4107080464. The cubic root of 8243443428 is about 2020.0845819565.

The spelling of 8243443428 in words is "eight billion, two hundred forty-three million, four hundred forty-three thousand, four hundred twenty-eight".