22321668 has 12 divisors (see below), whose sum is σ = 52083920. Its totient is φ = 7440552.

The previous prime is 22321667. The next prime is 22321679. The reversal of 22321668 is 86612322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×22321668³ (a number of 23 digits) contains 333 as substring.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (22321667) 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, 930058 + ... + 930081.

Almost surely, 2^22321668 is an apocalyptic number.

It is an amenable number.

22321668 is an abundant number, since it is smaller than the sum of its proper divisors (29762252).

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

22321668 is a wasteful number, since it uses less digits than its factorization.

22321668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860146 (or 1860144 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 22321668 is about 4724.5812512857. The cubic root of 22321668 is about 281.5629768227.

The spelling of 22321668 in words is "twenty-two million, three hundred twenty-one thousand, six hundred sixty-eight".