7844221422 has 24 divisors (see below), whose sum is σ = 17391066264. Its totient is φ = 2553932304.

The previous prime is 7844221417. The next prime is 7844221423. The reversal of 7844221422 is 2241224487.

7844221422 is a `hidden beast` number, since 7 + 8 + 4 + 4 + 221 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7844221423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5066553 + ... + 5068100.

It is an arithmetic number, because the mean of its divisors is an integer number (724627761).

Almost surely, 2^7844221422 is an apocalyptic number.

7844221422 is an abundant number, since it is smaller than the sum of its proper divisors (9546844842).

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

7844221422 is a wasteful number, since it uses less digits than its factorization.

7844221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134704 (or 10134701 counting only the distinct ones).

The product of its digits is 57344, while the sum is 36.

The square root of 7844221422 is about 88567.6093275640. The cubic root of 7844221422 is about 1986.9332680081.

The spelling of 7844221422 in words is "seven billion, eight hundred forty-four million, two hundred twenty-one thousand, four hundred twenty-two".