8043238720 has 112 divisors (see below), whose sum is σ = 21248827200. Its totient is φ = 2875166720.

The previous prime is 8043238717. The next prime is 8043238799. The reversal of 8043238720 is 278323408.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8043238720.

It is a congruent number.

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, 188316 + ... + 227044.

Almost surely, 2^8043238720 is an apocalyptic number.

8043238720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8043238720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10624413600).

8043238720 is an abundant number, since it is smaller than the sum of its proper divisors (13205588480).

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

8043238720 is a wasteful number, since it uses less digits than its factorization.

8043238720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38816 (or 38806 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 8043238720 is about 89684.1051691993. The cubic root of 8043238720 is about 2003.5967544678.

The spelling of 8043238720 in words is "eight billion, forty-three million, two hundred thirty-eight thousand, seven hundred twenty".