22207472 has 20 divisors (see below), whose sum is σ = 49173936. Its totient is φ = 9517440.

The previous prime is 22207421. The next prime is 22207481. The reversal of 22207472 is 27470222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99029 + ... + 99252.

Almost surely, 2^22207472 is an apocalyptic number.

It is an amenable number.

22207472 is an abundant number, since it is smaller than the sum of its proper divisors (26966464).

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

22207472 is a wasteful number, since it uses less digits than its factorization.

22207472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198296 (or 198290 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 22207472 is about 4712.4804508878. The cubic root of 22207472 is about 281.0820039031.

Adding to 22207472 its reverse (27470222), we get a palindrome (49677694).

The spelling of 22207472 in words is "twenty-two million, two hundred seven thousand, four hundred seventy-two".