22560660 has 96 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 5863680.

The previous prime is 22560617. The next prime is 22560697. The reversal of 22560660 is 6606522.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 21631 + ... + 22649.

It is an arithmetic number, because the mean of its divisors is an integer number (749700).

Almost surely, 2^22560660 is an apocalyptic number.

22560660 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 22560660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35985600).

22560660 is an abundant number, since it is smaller than the sum of its proper divisors (49410540).

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

22560660 is a wasteful number, since it uses less digits than its factorization.

22560660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 22560660 is about 4749.8063118405. The cubic root of 22560660 is about 282.5642843239.

It can be divided in two parts, 22560 and 660, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22560660 in words is "twenty-two million, five hundred sixty thousand, six hundred sixty".