22170560 has 56 divisors (see below), whose sum is σ = 53522880. Its totient is φ = 8745984.

The previous prime is 22170559. The next prime is 22170563. The reversal of 22170560 is 6507122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22170563) 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, 24842 + ... + 25718.

Almost surely, 2^22170560 is an apocalyptic number.

22170560 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 22170560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26761440).

22170560 is an abundant number, since it is smaller than the sum of its proper divisors (31352320).

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

22170560 is an equidigital number, since it uses as much as digits as its factorization.

22170560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 22170560 is about 4708.5624133062. The cubic root of 22170560 is about 280.9261846867.

Adding to 22170560 its reverse (6507122), we get a palindrome (28677682).

The spelling of 22170560 in words is "twenty-two million, one hundred seventy thousand, five hundred sixty".