8321563040 has 96 divisors (see below), whose sum is σ = 22630285440. Its totient is φ = 2832528384.

The previous prime is 8321563037. The next prime is 8321563097. The reversal of 8321563040 is 403651238.

It is a super-2 number, since 2×8321563040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 8321562988 and 8321563006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128954 + ... + 182406.

It is an arithmetic number, because the mean of its divisors is an integer number (235732140).

Almost surely, 2^8321563040 is an apocalyptic number.

8321563040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8321563040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11315142720).

8321563040 is an abundant number, since it is smaller than the sum of its proper divisors (14308722400).

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

8321563040 is a wasteful number, since it uses less digits than its factorization.

8321563040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53614 (or 53606 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 8321563040 is about 91222.6015853527. The cubic root of 8321563040 is about 2026.4456914157.

The spelling of 8321563040 in words is "eight billion, three hundred twenty-one million, five hundred sixty-three thousand, forty".