22224574 has 4 divisors (see below), whose sum is σ = 33336864. Its totient is φ = 11112286.

The previous prime is 22224563. The next prime is 22224577. The reversal of 22224574 is 47542222.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556142 + ... + 5556145.

It is an arithmetic number, because the mean of its divisors is an integer number (8334216).

Almost surely, 2^22224574 is an apocalyptic number.

22224574 is a deficient number, since it is larger than the sum of its proper divisors (11112290).

22224574 is a wasteful number, since it uses less digits than its factorization.

22224574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112289.

The product of its digits is 8960, while the sum is 28.

The square root of 22224574 is about 4714.2946450132. The cubic root of 22224574 is about 281.1541392484.

Adding to 22224574 its reverse (47542222), we get a palindrome (69766796).

The spelling of 22224574 in words is "twenty-two million, two hundred twenty-four thousand, five hundred seventy-four".