8445212928 has 90 divisors (see below), whose sum is σ = 25182158694. Its totient is φ = 2815064064.

The previous prime is 8445212903. The next prime is 8445212939. The reversal of 8445212928 is 8292125448.

8445212928 is a `hidden beast` number, since 84 + 4 + 521 + 29 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6784487424 + 1660725504 = 82368^2 + 40752^2 .

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 9 ways as a sum of consecutive naturals, for example, 182901 + ... + 224372.

Almost surely, 2^8445212928 is an apocalyptic number.

It is an amenable number.

8445212928 is an abundant number, since it is smaller than the sum of its proper divisors (16736945766).

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

8445212928 is an equidigital number, since it uses as much as digits as its factorization.

8445212928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407301 (or 407278 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 8445212928 is about 91897.8396264025. The cubic root of 8445212928 is about 2036.4333526379.

The spelling of 8445212928 in words is "eight billion, four hundred forty-five million, two hundred twelve thousand, nine hundred twenty-eight".