8342221806 has 16 divisors (see below), whose sum is σ = 18538270800. Its totient is φ = 2780740584.

The previous prime is 8342221801. The next prime is 8342221819. The reversal of 8342221806 is 6081222438.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8342221801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77242741 + ... + 77242848.

It is an arithmetic number, because the mean of its divisors is an integer number (1158641925).

Almost surely, 2^8342221806 is an apocalyptic number.

8342221806 is an abundant number, since it is smaller than the sum of its proper divisors (10196048994).

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

8342221806 is a wasteful number, since it uses less digits than its factorization.

8342221806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154485600 (or 154485594 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 8342221806 is about 91335.7641124220. The cubic root of 8342221806 is about 2028.1212288793.

The spelling of 8342221806 in words is "eight billion, three hundred forty-two million, two hundred twenty-one thousand, eight hundred six".