22143266 has 8 divisors (see below), whose sum is σ = 33249180. Its totient is φ = 11060208.

The previous prime is 22143263. The next prime is 22143271. The reversal of 22143266 is 66234122.

It can be written as a sum of positive squares in 2 ways, for example, as 22137025 + 6241 = 4705^2 + 79^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22143263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041 + ... + 7316.

Almost surely, 2^22143266 is an apocalyptic number.

22143266 is a deficient number, since it is larger than the sum of its proper divisors (11105914).

22143266 is a wasteful number, since it uses less digits than its factorization.

22143266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428.

The product of its digits is 3456, while the sum is 26.

The square root of 22143266 is about 4705.6631838669. The cubic root of 22143266 is about 280.8108553499.

Adding to 22143266 its reverse (66234122), we get a palindrome (88377388).

The spelling of 22143266 in words is "twenty-two million, one hundred forty-three thousand, two hundred sixty-six".