22412718 has 48 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 6974352.

The previous prime is 22412707. The next prime is 22412771. The reversal of 22412718 is 81721422.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22412691 and 22412700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17173 + ... + 18431.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^22412718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22412718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25945920).

22412718 is an abundant number, since it is smaller than the sum of its proper divisors (29479122).

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

22412718 is a wasteful number, since it uses less digits than its factorization.

22412718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1330 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 22412718 is about 4734.2072197993. The cubic root of 22412718 is about 281.9452889184.

The spelling of 22412718 in words is "twenty-two million, four hundred twelve thousand, seven hundred eighteen".