22224005 has 8 divisors (see below), whose sum is σ = 27588600. Its totient is φ = 17166016.

The previous prime is 22223989. The next prime is 22224023. The reversal of 22224005 is 50042222.

It can be written as a sum of positive squares in 4 ways, for example, as 2209 + 22221796 = 47^2 + 4714^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22224005 - 2⁴ = 22223989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76490 + ... + 76779.

It is an arithmetic number, because the mean of its divisors is an integer number (3448575).

Almost surely, 2^22224005 is an apocalyptic number.

It is an amenable number.

22224005 is a deficient number, since it is larger than the sum of its proper divisors (5364595).

22224005 is a wasteful number, since it uses less digits than its factorization.

22224005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153303.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22224005 is about 4714.2342962564. The cubic root of 22224005 is about 281.1517398313.

Adding to 22224005 its reverse (50042222), we get a palindrome (72266227).

The spelling of 22224005 in words is "twenty-two million, two hundred twenty-four thousand, five".