22818672 has 60 divisors (see below), whose sum is σ = 66237080. Its totient is φ = 7604928.

The previous prime is 22818671. The next prime is 22818701. The reversal of 22818672 is 27681822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22818671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954 + ... + 6822.

Almost surely, 2^22818672 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 22818672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33118540).

22818672 is an abundant number, since it is smaller than the sum of its proper divisors (43418408).

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

22818672 is an equidigital number, since it uses as much as digits as its factorization.

22818672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892 (or 5874 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 22818672 is about 4776.8893644295. The cubic root of 22818672 is about 283.6373735844.

The spelling of 22818672 in words is "twenty-two million, eight hundred eighteen thousand, six hundred seventy-two".