266245222 has 8 divisors (see below), whose sum is σ = 399510000. Its totient is φ = 133075224.

The previous prime is 266245181. The next prime is 266245277. The reversal of 266245222 is 222542662.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16197 + ... + 28192.

It is an arithmetic number, because the mean of its divisors is an integer number (49938750).

Almost surely, 2^266245222 is an apocalyptic number.

266245222 is a deficient number, since it is larger than the sum of its proper divisors (133264778).

266245222 is a wasteful number, since it uses less digits than its factorization.

266245222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47390.

The product of its digits is 23040, while the sum is 31.

The square root of 266245222 is about 16317.0224612213. The cubic root of 266245222 is about 643.3203273223.

Adding to 266245222 its reverse (222542662), we get a palindrome (488787884).

The spelling of 266245222 in words is "two hundred sixty-six million, two hundred forty-five thousand, two hundred twenty-two".