266244222 has 8 divisors (see below), whose sum is σ = 532488456. Its totient is φ = 88748072.

The previous prime is 266244203. The next prime is 266244229. The reversal of 266244222 is 222442662.

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

266244222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 266244222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266244229) 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, 22187013 + ... + 22187024.

It is an arithmetic number, because the mean of its divisors is an integer number (66561057).

Almost surely, 2^266244222 is an apocalyptic number.

266244222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266244222 is a wasteful number, since it uses less digits than its factorization.

266244222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44374042.

The product of its digits is 18432, while the sum is 30.

The square root of 266244222 is about 16316.9918183469. The cubic root of 266244222 is about 643.3195218980.

Adding to 266244222 its reverse (222442662), we get a palindrome (488686884).

The spelling of 266244222 in words is "two hundred sixty-six million, two hundred forty-four thousand, two hundred twenty-two".