22225672 has 16 divisors (see below), whose sum is σ = 47626560. Its totient is φ = 9525264.

The previous prime is 22225669. The next prime is 22225691. The reversal of 22225672 is 27652222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 22225672.

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, 198388 + ... + 198499.

It is an arithmetic number, because the mean of its divisors is an integer number (2976660).

Almost surely, 2^22225672 is an apocalyptic number.

It is an amenable number.

22225672 is an abundant number, since it is smaller than the sum of its proper divisors (25400888).

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

22225672 is a wasteful number, since it uses less digits than its factorization.

22225672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396900 (or 396896 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 22225672 is about 4714.4110978997. The cubic root of 22225672 is about 281.1587692908.

Adding to 22225672 its reverse (27652222), we get a palindrome (49877894).

The spelling of 22225672 in words is "twenty-two million, two hundred twenty-five thousand, six hundred seventy-two".