8521240488 has 16 divisors (see below), whose sum is σ = 21303101280. Its totient is φ = 2840413488.

The previous prime is 8521240471. The next prime is 8521240501. The reversal of 8521240488 is 8840421258.

It is a super-2 number, since 2×8521240488² (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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177525820 + ... + 177525867.

It is an arithmetic number, because the mean of its divisors is an integer number (1331443830).

Almost surely, 2^8521240488 is an apocalyptic number.

It is an amenable number.

8521240488 is an abundant number, since it is smaller than the sum of its proper divisors (12781860792).

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

8521240488 is a wasteful number, since it uses less digits than its factorization.

8521240488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355051696 (or 355051692 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 42.

The square root of 8521240488 is about 92310.5654191328. The cubic root of 8521240488 is about 2042.5260653054.

The spelling of 8521240488 in words is "eight billion, five hundred twenty-one million, two hundred forty thousand, four hundred eighty-eight".