8434121228 has 12 divisors (see below), whose sum is σ = 15895074720. Its totient is φ = 3892671312.

The previous prime is 8434121219. The next prime is 8434121249. The reversal of 8434121228 is 8221214348.

It is a super-2 number, since 2×8434121228² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 81097268 + ... + 81097371.

It is an arithmetic number, because the mean of its divisors is an integer number (1324589560).

Almost surely, 2^8434121228 is an apocalyptic number.

It is an amenable number.

8434121228 is a deficient number, since it is larger than the sum of its proper divisors (7460953492).

8434121228 is a wasteful number, since it uses less digits than its factorization.

8434121228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162194656 (or 162194654 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 8434121228 is about 91837.4718075362. The cubic root of 8434121228 is about 2035.5414310319.

The spelling of 8434121228 in words is "eight billion, four hundred thirty-four million, one hundred twenty-one thousand, two hundred twenty-eight".