22227372 has 60 divisors (see below), whose sum is σ = 60008256. Its totient is φ = 7166880.

The previous prime is 22227349. The next prime is 22227377. The reversal of 22227372 is 27372222.

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

It is not an unprimeable number, because it can be changed into a prime (22227377) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8938 + ... + 11150.

Almost surely, 2^22227372 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 22227372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30004128).

22227372 is an abundant number, since it is smaller than the sum of its proper divisors (37780884).

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

22227372 is a wasteful number, since it uses less digits than its factorization.

22227372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 2249 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 22227372 is about 4714.5913926872. The cubic root of 22227372 is about 281.1659375438.

Adding to 22227372 its reverse (27372222), we get a palindrome (49599594).

The spelling of 22227372 in words is "twenty-two million, two hundred twenty-seven thousand, three hundred seventy-two".