22223146 has 8 divisors (see below), whose sum is σ = 36365184. Its totient is φ = 10101420.

The previous prime is 22223143. The next prime is 22223147. The reversal of 22223146 is 64132222.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1010143 = 22223146 / (2 + 2 + 2 + 2 + 3 + 1 + 4 + 6).

It is not an unprimeable number, because it can be changed into a prime (22223143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 505050 + ... + 505093.

It is an arithmetic number, because the mean of its divisors is an integer number (4545648).

Almost surely, 2^22223146 is an apocalyptic number.

22223146 is a deficient number, since it is larger than the sum of its proper divisors (14142038).

22223146 is a wasteful number, since it uses less digits than its factorization.

22223146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010156.

The product of its digits is 1152, while the sum is 22.

The square root of 22223146 is about 4714.1431883217. The cubic root of 22223146 is about 281.1481174350.

Adding to 22223146 its reverse (64132222), we get a palindrome (86355368).

The spelling of 22223146 in words is "twenty-two million, two hundred twenty-three thousand, one hundred forty-six".