22240472 has 16 divisors (see below), whose sum is σ = 42273240. Its totient is φ = 10967616.

The previous prime is 22240457. The next prime is 22240499. The reversal of 22240472 is 27404222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18458 + ... + 19625.

Almost surely, 2^22240472 is an apocalyptic number.

It is an amenable number.

22240472 is a deficient number, since it is larger than the sum of its proper divisors (20032768).

22240472 is a wasteful number, since it uses less digits than its factorization.

22240472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38162 (or 38158 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 22240472 is about 4715.9804919020. The cubic root of 22240472 is about 281.2211630022.

Adding to 22240472 its reverse (27404222), we get a palindrome (49644694).

The spelling of 22240472 in words is "twenty-two million, two hundred forty thousand, four hundred seventy-two".