8210086440 has 64 divisors (see below), whose sum is σ = 25701148800. Its totient is φ = 2094166272.

The previous prime is 8210086439. The next prime is 8210086457. The reversal of 8210086440 is 446800128.

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 15 ways as a sum of consecutive naturals, for example, 1484575 + ... + 1490094.

It is an arithmetic number, because the mean of its divisors is an integer number (401580450).

Almost surely, 2^8210086440 is an apocalyptic number.

It is an amenable number.

8210086440 is an abundant number, since it is smaller than the sum of its proper divisors (17491062360).

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

8210086440 is a wasteful number, since it uses less digits than its factorization.

8210086440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974706 (or 2974702 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 8210086440 is about 90609.5273136330. The cubic root of 8210086440 is about 2017.3561496762.

Adding to 8210086440 its reverse (446800128), we get a palindrome (8656886568).

The spelling of 8210086440 in words is "eight billion, two hundred ten million, eighty-six thousand, four hundred forty".