22806072 has 48 divisors (see below), whose sum is σ = 62478000. Its totient is φ = 7514496.

The previous prime is 22806067. The next prime is 22806079. The reversal of 22806072 is 27060822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22806079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4629 + ... + 8187.

It is an arithmetic number, because the mean of its divisors is an integer number (1301625).

Almost surely, 2^22806072 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 22806072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31239000).

22806072 is an abundant number, since it is smaller than the sum of its proper divisors (39671928).

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

22806072 is a wasteful number, since it uses less digits than its factorization.

22806072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3653 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22806072 is about 4775.5703324315. The cubic root of 22806072 is about 283.5851577366.

Adding to 22806072 its reverse (27060822), we get a palindrome (49866894).

The spelling of 22806072 in words is "twenty-two million, eight hundred six thousand, seventy-two".