22561260 has 24 divisors (see below), whose sum is σ = 63171696. Its totient is φ = 6016320.

The previous prime is 22561247. The next prime is 22561267. The reversal of 22561260 is 6216522.

It is a self number, because there is not a number n which added to its sum of digits gives 22561260.

It is not an unprimeable number, because it can be changed into a prime (22561267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187951 + ... + 188070.

It is an arithmetic number, because the mean of its divisors is an integer number (2632154).

Almost surely, 2^22561260 is an apocalyptic number.

22561260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22561260 is an abundant number, since it is smaller than the sum of its proper divisors (40610436).

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

22561260 is a wasteful number, since it uses less digits than its factorization.

22561260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376033 (or 376031 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22561260 is about 4749.8694718908. The cubic root of 22561260 is about 282.5667892309.

Adding to 22561260 its reverse (6216522), we get a palindrome (28777782).

The spelling of 22561260 in words is "twenty-two million, five hundred sixty-one thousand, two hundred sixty".