8520237228 has 12 divisors (see below), whose sum is σ = 19880553560. Its totient is φ = 2840079072.

The previous prime is 8520237227. The next prime is 8520237247. The reversal of 8520237228 is 8227320258.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (8520237227) 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 3 ways as a sum of consecutive naturals, for example, 355009873 + ... + 355009896.

Almost surely, 2^8520237228 is an apocalyptic number.

It is an amenable number.

8520237228 is an abundant number, since it is smaller than the sum of its proper divisors (11360316332).

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

8520237228 is a wasteful number, since it uses less digits than its factorization.

8520237228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710019776 (or 710019774 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 8520237228 is about 92305.1311033141. The cubic root of 8520237228 is about 2042.4459022849.

The spelling of 8520237228 in words is "eight billion, five hundred twenty million, two hundred thirty-seven thousand, two hundred twenty-eight".