1266342676 has 12 divisors (see below), whose sum is σ = 2252429620. Its totient is φ = 622791360.

The previous prime is 1266342659. The next prime is 1266342677. The reversal of 1266342676 is 6762436621.

It can be written as a sum of positive squares in 2 ways, for example, as 480661776 + 785680900 = 21924^2 + 28030^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266342677) by changing a digit.

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, 2594721 + ... + 2595208.

Almost surely, 2^1266342676 is an apocalyptic number.

It is an amenable number.

1266342676 is a deficient number, since it is larger than the sum of its proper divisors (986086944).

1266342676 is a wasteful number, since it uses less digits than its factorization.

1266342676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189994 (or 5189992 counting only the distinct ones).

The product of its digits is 435456, while the sum is 43.

The square root of 1266342676 is about 35585.7088730856. The cubic root of 1266342676 is about 1081.8915969539.

The spelling of 1266342676 in words is "one billion, two hundred sixty-six million, three hundred forty-two thousand, six hundred seventy-six".