22224727 has 8 divisors (see below), whose sum is σ = 25625376. Its totient is φ = 18880512.

The previous prime is 22224721. The next prime is 22224743. The reversal of 22224727 is 72742222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22224727 - 2⁷ = 22224599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22224695 and 22224704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13258 + ... + 14839.

It is an arithmetic number, because the mean of its divisors is an integer number (3203172).

Almost surely, 2^22224727 is an apocalyptic number.

22224727 is a deficient number, since it is larger than the sum of its proper divisors (3400649).

22224727 is a wasteful number, since it uses less digits than its factorization.

22224727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28217.

The product of its digits is 6272, while the sum is 28.

The square root of 22224727 is about 4714.3108722272. The cubic root of 22224727 is about 281.1547844274.

Adding to 22224727 its reverse (72742222), we get a palindrome (94966949).

The spelling of 22224727 in words is "twenty-two million, two hundred twenty-four thousand, seven hundred twenty-seven".