8563040 has 48 divisors (see below), whose sum is σ = 20457360. Its totient is φ = 3386880.

The previous prime is 8563039. The next prime is 8563043. The reversal of 8563040 is 403658.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8563043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17195 + ... + 17685.

It is an arithmetic number, because the mean of its divisors is an integer number (426195).

Almost surely, 2^8563040 is an apocalyptic number.

8563040 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 8563040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10228680).

8563040 is an abundant number, since it is smaller than the sum of its proper divisors (11894320).

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

8563040 is a wasteful number, since it uses less digits than its factorization.

8563040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 8563040 is about 2926.2672468522. The cubic root of 8563040 is about 204.5860375293.

Adding to 8563040 its reverse (403658), we get a palindrome (8966698).

The spelling of 8563040 in words is "eight million, five hundred sixty-three thousand, forty".