22224578 has 16 divisors (see below), whose sum is σ = 35211456. Its totient is φ = 10499280.

The previous prime is 22224577. The next prime is 22224599. The reversal of 22224578 is 87542222.

It is a plaindrome in base 10.

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 in 7 ways as a sum of consecutive naturals, for example, 908 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (2200716).

Almost surely, 2^22224578 is an apocalyptic number.

22224578 is a deficient number, since it is larger than the sum of its proper divisors (12986878).

22224578 is a wasteful number, since it uses less digits than its factorization.

22224578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5929.

The product of its digits is 17920, while the sum is 32.

The square root of 22224578 is about 4714.2950692548. The cubic root of 22224578 is about 281.1541561159.

The spelling of 22224578 in words is "twenty-two million, two hundred twenty-four thousand, five hundred seventy-eight".