8214440805 has 24 divisors (see below), whose sum is σ = 14347064160. Its totient is φ = 4347588960.

The previous prime is 8214440771. The next prime is 8214440809. The reversal of 8214440805 is 5080444128.

It is not a de Polignac number, because 8214440805 - 2⁹ = 8214440293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8214440805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8214440809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 690835 + ... + 702624.

It is an arithmetic number, because the mean of its divisors is an integer number (597794340).

Almost surely, 2^8214440805 is an apocalyptic number.

It is an amenable number.

8214440805 is a deficient number, since it is larger than the sum of its proper divisors (6132623355).

8214440805 is a wasteful number, since it uses less digits than its factorization.

8214440805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393601 (or 1393598 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 8214440805 is about 90633.5523136989. The cubic root of 8214440805 is about 2017.7127335182.

The spelling of 8214440805 in words is "eight billion, two hundred fourteen million, four hundred forty thousand, eight hundred five".