22318866 has 24 divisors (see below), whose sum is σ = 48943440. Its totient is φ = 7349496.

The previous prime is 22318861. The next prime is 22318871. The reversal of 22318866 is 66881322.

It is an interprime number because it is at equal distance from previous prime (22318861) and next prime (22318871).

It is a super-3 number, since 3×22318866³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22318866.

It is not an unprimeable number, because it can be changed into a prime (22318861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5976 + ... + 8963.

It is an arithmetic number, because the mean of its divisors is an integer number (2039310).

Almost surely, 2^22318866 is an apocalyptic number.

22318866 is an abundant number, since it is smaller than the sum of its proper divisors (26624574).

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

22318866 is a wasteful number, since it uses less digits than its factorization.

22318866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15030 (or 15027 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22318866 is about 4724.2847077626. The cubic root of 22318866 is about 281.5511949602.

The spelling of 22318866 in words is "twenty-two million, three hundred eighteen thousand, eight hundred sixty-six".