22680784 has 40 divisors (see below), whose sum is σ = 51960960. Its totient is φ = 9383808.

The previous prime is 22680733. The next prime is 22680787. The reversal of 22680784 is 48708622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22680787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (1299024).

Almost surely, 2^22680784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22680784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25980480).

22680784 is an abundant number, since it is smaller than the sum of its proper divisors (29280176).

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

22680784 is a wasteful number, since it uses less digits than its factorization.

22680784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027 (or 7021 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 22680784 is about 4762.4346714679. The cubic root of 22680784 is about 283.0649003970.

The spelling of 22680784 in words is "twenty-two million, six hundred eighty thousand, seven hundred eighty-four".