22027320 has 96 divisors (see below), whose sum is σ = 81825120. Its totient is φ = 5034240.

The previous prime is 22027303. The next prime is 22027339. The reversal of 22027320 is 2372022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22027293 and 22027302.

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, 1851 + ... + 6890.

It is an arithmetic number, because the mean of its divisors is an integer number (852345).

Almost surely, 2^22027320 is an apocalyptic number.

22027320 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 22027320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40912560).

22027320 is an abundant number, since it is smaller than the sum of its proper divisors (59797800).

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

22027320 is a wasteful number, since it uses less digits than its factorization.

22027320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8765 (or 8758 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 22027320 is about 4693.3271780263. The cubic root of 22027320 is about 280.3198725331.

Adding to 22027320 its reverse (2372022), we get a palindrome (24399342).

The spelling of 22027320 in words is "twenty-two million, twenty-seven thousand, three hundred twenty".