22242560 has 36 divisors (see below), whose sum is σ = 53280948. Its totient is φ = 8896512.

The previous prime is 22242553. The next prime is 22242569. The reversal of 22242560 is 6524222.

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 18113536 = 2032^2 + 4256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22242569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7409 + ... + 9968.

Almost surely, 2^22242560 is an apocalyptic number.

22242560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22242560 is an abundant number, since it is smaller than the sum of its proper divisors (31038388).

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

22242560 is an equidigital number, since it uses as much as digits as its factorization.

22242560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17398 (or 17384 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22242560 is about 4716.2018616679. The cubic root of 22242560 is about 281.2299633463.

Adding to 22242560 its reverse (6524222), we get a palindrome (28766782).

The spelling of 22242560 in words is "twenty-two million, two hundred forty-two thousand, five hundred sixty".