22680320 has 144 divisors (see below), whose sum is σ = 61810560. Its totient is φ = 7913472.

The previous prime is 22680299. The next prime is 22680341. The reversal of 22680320 is 2308622.

It is an interprime number because it is at equal distance from previous prime (22680299) and next prime (22680341).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482537 + ... + 482583.

It is an arithmetic number, because the mean of its divisors is an integer number (429240).

Almost surely, 2^22680320 is an apocalyptic number.

22680320 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 22680320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30905280).

22680320 is an abundant number, since it is smaller than the sum of its proper divisors (39130240).

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

22680320 is a wasteful number, since it uses less digits than its factorization.

22680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22680320 is about 4762.3859566398. The cubic root of 22680320 is about 283.0629700844.

Adding to 22680320 its reverse (2308622), we get a palindrome (24988942).

The spelling of 22680320 in words is "twenty-two million, six hundred eighty thousand, three hundred twenty".