22260500 has 36 divisors (see below), whose sum is σ = 48848436. Its totient is φ = 8862000.

The previous prime is 22260443. The next prime is 22260503. The reversal of 22260500 is 506222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 712336 + 21548164 = 844^2 + 4642^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22260503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105395 + ... + 105605.

It is an arithmetic number, because the mean of its divisors is an integer number (1356901).

Almost surely, 2^22260500 is an apocalyptic number.

22260500 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 22260500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24424218).

22260500 is an abundant number, since it is smaller than the sum of its proper divisors (26587936).

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

22260500 is an equidigital number, since it uses as much as digits as its factorization.

22260500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22260500 is about 4718.1034325246. The cubic root of 22260500 is about 281.3055528124.

Adding to 22260500 its reverse (506222), we get a palindrome (22766722).

The spelling of 22260500 in words is "twenty-two million, two hundred sixty thousand, five hundred".