8438020222 has 4 divisors (see below), whose sum is σ = 12657030336. Its totient is φ = 4219010110.

The previous prime is 8438020219. The next prime is 8438020229. The reversal of 8438020222 is 2220208348.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438020229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109505054 + ... + 2109505057.

It is an arithmetic number, because the mean of its divisors is an integer number (3164257584).

Almost surely, 2^8438020222 is an apocalyptic number.

8438020222 is a deficient number, since it is larger than the sum of its proper divisors (4219010114).

8438020222 is a wasteful number, since it uses less digits than its factorization.

8438020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219010113.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 8438020222 is about 91858.6970406178. The cubic root of 8438020222 is about 2035.8550515792.

The spelling of 8438020222 in words is "eight billion, four hundred thirty-eight million, twenty thousand, two hundred twenty-two".