1266330406 has 16 divisors (see below), whose sum is σ = 2072796480. Its totient is φ = 575432680.

The previous prime is 1266330379. The next prime is 1266330407. The reversal of 1266330406 is 6040336621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266330407) 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 7 ways as a sum of consecutive naturals, for example, 93705 + ... + 106363.

It is an arithmetic number, because the mean of its divisors is an integer number (129549780).

Almost surely, 2^1266330406 is an apocalyptic number.

1266330406 is a deficient number, since it is larger than the sum of its proper divisors (806466074).

1266330406 is a wasteful number, since it uses less digits than its factorization.

1266330406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17219.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1266330406 is about 35585.5364719994. The cubic root of 1266330406 is about 1081.8881026778. Note that the first 3 decimals are identical.

The spelling of 1266330406 in words is "one billion, two hundred sixty-six million, three hundred thirty thousand, four hundred six".