8943243738 has 96 divisors (see below), whose sum is σ = 21262901760. Its totient is φ = 2485753920.

The previous prime is 8943243731. The next prime is 8943243739. The reversal of 8943243738 is 8373423498.

It is not an unprimeable number, because it can be changed into a prime (8943243731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1815643 + ... + 1820561.

It is an arithmetic number, because the mean of its divisors is an integer number (221488560).

Almost surely, 2^8943243738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8943243738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10631450880).

8943243738 is an abundant number, since it is smaller than the sum of its proper divisors (12319658022).

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

8943243738 is a wasteful number, since it uses less digits than its factorization.

8943243738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124 (or 5111 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 51.

The square root of 8943243738 is about 94568.7249464642. The cubic root of 8943243738 is about 2075.7020888700.

The spelling of 8943243738 in words is "eight billion, nine hundred forty-three million, two hundred forty-three thousand, seven hundred thirty-eight".