22135560 has 32 divisors (see below), whose sum is σ = 66407040. Its totient is φ = 5902784.

The previous prime is 22135559. The next prime is 22135577. The reversal of 22135560 is 6553122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22135560.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92112 + ... + 92351.

It is an arithmetic number, because the mean of its divisors is an integer number (2075220).

Almost surely, 2^22135560 is an apocalyptic number.

22135560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22135560 is an abundant number, since it is smaller than the sum of its proper divisors (44271480).

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

22135560 is a wasteful number, since it uses less digits than its factorization.

22135560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184477 (or 184473 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 22135560 is about 4704.8443119831. The cubic root of 22135560 is about 280.7782769049.

Adding to 22135560 its reverse (6553122), we get a palindrome (28688682).

The spelling of 22135560 in words is "twenty-two million, one hundred thirty-five thousand, five hundred sixty".