22280760 has 96 divisors (see below), whose sum is σ = 73710000. Its totient is φ = 5835264.

The previous prime is 22280743. The next prime is 22280779. The reversal of 22280760 is 6708222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20716 + ... + 21764.

Almost surely, 2^22280760 is an apocalyptic number.

22280760 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 22280760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36855000).

22280760 is an abundant number, since it is smaller than the sum of its proper divisors (51429240).

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

22280760 is a wasteful number, since it uses less digits than its factorization.

22280760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22280760 is about 4720.2499933796. The cubic root of 22280760 is about 281.3908686911.

Adding to 22280760 its reverse (6708222), we get a palindrome (28988982).

The spelling of 22280760 in words is "twenty-two million, two hundred eighty thousand, seven hundred sixty".