22080312 has 48 divisors (see below), whose sum is σ = 60283080. Its totient is φ = 7300800.

The previous prime is 22080301. The next prime is 22080329. The reversal of 22080312 is 21308022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8262 + ... + 10602.

Almost surely, 2^22080312 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 22080312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30141540).

22080312 is an abundant number, since it is smaller than the sum of its proper divisors (38202768).

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

22080312 is a wasteful number, since it uses less digits than its factorization.

22080312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22080312 is about 4698.9692486757. The cubic root of 22080312 is about 280.5444847327.

Adding to 22080312 its reverse (21308022), we get a palindrome (43388334).

The spelling of 22080312 in words is "twenty-two million, eighty thousand, three hundred twelve".