9281640284 has 12 divisors (see below), whose sum is σ = 18563280624. Its totient is φ = 3977845824.

The previous prime is 9281640259. The next prime is 9281640299. The reversal of 9281640284 is 4820461829.

9281640284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

9281640284 is an admirable number.

It is a super-2 number, since 2×9281640284² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 165743549 + ... + 165743604.

It is an arithmetic number, because the mean of its divisors is an integer number (1546940052).

Almost surely, 2^9281640284 is an apocalyptic number.

It is an amenable number.

9281640284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9281640284 is a wasteful number, since it uses less digits than its factorization.

9281640284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331487164 (or 331487162 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 9281640284 is about 96341.2698899075. The cubic root of 9281640284 is about 2101.5589545785.

The spelling of 9281640284 in words is "nine billion, two hundred eighty-one million, six hundred forty thousand, two hundred eighty-four".