22788416 has 28 divisors (see below), whose sum is σ = 51681888. Its totient is φ = 9766272.

The previous prime is 22788413. The next prime is 22788421. The reversal of 22788416 is 61488722.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 22788416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22788413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24986 + ... + 25881.

Almost surely, 2^22788416 is an apocalyptic number.

It is an amenable number.

22788416 is an abundant number, since it is smaller than the sum of its proper divisors (28893472).

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

22788416 is an equidigital number, since it uses as much as digits as its factorization.

22788416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50886 (or 50876 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 22788416 is about 4773.7213994954. The cubic root of 22788416 is about 283.5119568773.

The spelling of 22788416 in words is "twenty-two million, seven hundred eighty-eight thousand, four hundred sixteen".