22316560 has 60 divisors (see below), whose sum is σ = 60367788. Its totient is φ = 7650048.

The previous prime is 22316557. The next prime is 22316599. The reversal of 22316560 is 6561322.

It can be written as a sum of positive squares in 2 ways, for example, as 5143824 + 17172736 = 2268^2 + 4144^2 .

It is a super-3 number, since 3×22316560³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1074 + ... + 6766.

Almost surely, 2^22316560 is an apocalyptic number.

22316560 is a gapful number since it is divisible by the number (20) 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 22316560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30183894).

22316560 is an abundant number, since it is smaller than the sum of its proper divisors (38051228).

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

22316560 is a wasteful number, since it uses less digits than its factorization.

22316560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720 (or 5707 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22316560 is about 4724.0406433476. The cubic root of 22316560 is about 281.5414979409.

Adding to 22316560 its reverse (6561322), we get a palindrome (28877882).

The spelling of 22316560 in words is "twenty-two million, three hundred sixteen thousand, five hundred sixty".