1266022306 has 8 divisors (see below), whose sum is σ = 1911779100. Its totient is φ = 628762608.

The previous prime is 1266022271. The next prime is 1266022309. The reversal of 1266022306 is 6032206621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1233063225 + 32959081 = 35115^2 + 5741^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1266022309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123901 + ... + 2124496.

Almost surely, 2^1266022306 is an apocalyptic number.

1266022306 is a deficient number, since it is larger than the sum of its proper divisors (645756794).

1266022306 is a wasteful number, since it uses less digits than its factorization.

1266022306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248548.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1266022306 is about 35581.2072026793. The cubic root of 1266022306 is about 1081.8003539198.

Adding to 1266022306 its reverse (6032206621), we get a palindrome (7298228927).

The spelling of 1266022306 in words is "one billion, two hundred sixty-six million, twenty-two thousand, three hundred six".