8069927440 has 80 divisors (see below), whose sum is σ = 20035860480. Its totient is φ = 3016097280.

The previous prime is 8069927419. The next prime is 8069927447. The reversal of 8069927440 is 447299608.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (8069927447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15817 + ... + 128023.

It is an arithmetic number, because the mean of its divisors is an integer number (250448256).

Almost surely, 2^8069927440 is an apocalyptic number.

8069927440 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 8069927440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10017930240).

8069927440 is an abundant number, since it is smaller than the sum of its proper divisors (11965933040).

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

8069927440 is a wasteful number, since it uses less digits than its factorization.

8069927440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112280 (or 112274 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 8069927440 is about 89832.7748653018. The cubic root of 8069927440 is about 2005.8103900038.

The spelling of 8069927440 in words is "eight billion, sixty-nine million, nine hundred twenty-seven thousand, four hundred forty".