8531390328 has 32 divisors (see below), whose sum is σ = 21646815360. Its totient is φ = 2801351520.

The previous prime is 8531390243. The next prime is 8531390333. The reversal of 8531390328 is 8230931358.

It is a self number, because there is not a number n which added to its sum of digits gives 8531390328.

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, 2651188 + ... + 2654403.

It is an arithmetic number, because the mean of its divisors is an integer number (676462980).

Almost surely, 2^8531390328 is an apocalyptic number.

It is an amenable number.

8531390328 is an abundant number, since it is smaller than the sum of its proper divisors (13115425032).

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

8531390328 is a wasteful number, since it uses less digits than its factorization.

8531390328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305667 (or 5305663 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 8531390328 is about 92365.5256467477. The cubic root of 8531390328 is about 2043.3367096810.

The spelling of 8531390328 in words is "eight billion, five hundred thirty-one million, three hundred ninety thousand, three hundred twenty-eight".