22327812 has 168 divisors, whose sum is σ = 68552960. Its totient is φ = 6298560.

The previous prime is 22327801. The next prime is 22327829. The reversal of 22327812 is 21872322.

It is a happy number.

It is a super-3 number, since 3×22327812³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 720237 + ... + 720267.

Almost surely, 2^22327812 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 22327812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34276480).

22327812 is an abundant number, since it is smaller than the sum of its proper divisors (46225148).

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

22327812 is a wasteful number, since it uses less digits than its factorization.

22327812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 68 counting only the distinct ones).

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

The square root of 22327812 is about 4725.2314229041. The cubic root of 22327812 is about 281.5888076916.

The spelling of 22327812 in words is "twenty-two million, three hundred twenty-seven thousand, eight hundred twelve".