8121450228 has 24 divisors (see below), whose sum is σ = 19127156832. Its totient is φ = 2681849184.

The previous prime is 8121450217. The next prime is 8121450247. The reversal of 8121450228 is 8220541218.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3161275 + ... + 3163842.

It is an arithmetic number, because the mean of its divisors is an integer number (796964868).

Almost surely, 2^8121450228 is an apocalyptic number.

It is an amenable number.

8121450228 is an abundant number, since it is smaller than the sum of its proper divisors (11005706604).

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

8121450228 is a wasteful number, since it uses less digits than its factorization.

8121450228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325231 (or 6325229 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 8121450228 is about 90119.0891431998. The cubic root of 8121450228 is about 2010.0700641402.

The spelling of 8121450228 in words is "eight billion, one hundred twenty-one million, four hundred fifty thousand, two hundred twenty-eight".