8422209774 has 48 divisors (see below), whose sum is σ = 19927243440. Its totient is φ = 2549594880.

The previous prime is 8422209739. The next prime is 8422209779. The reversal of 8422209774 is 4779022248.

It is a super-2 number, since 2×8422209774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422209779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178704 + ... + 220860.

It is an arithmetic number, because the mean of its divisors is an integer number (415150905).

Almost surely, 2^8422209774 is an apocalyptic number.

8422209774 is an abundant number, since it is smaller than the sum of its proper divisors (11505033666).

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

8422209774 is a wasteful number, since it uses less digits than its factorization.

8422209774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43185 (or 43182 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 8422209774 is about 91772.5981652476. The cubic root of 8422209774 is about 2034.5827189659.

The spelling of 8422209774 in words is "eight billion, four hundred twenty-two million, two hundred nine thousand, seven hundred seventy-four".