1264664306 has 32 divisors (see below), whose sum is σ = 2093921280. Its totient is φ = 570169600.

The previous prime is 1264664299. The next prime is 1264664309. The reversal of 1264664306 is 6034664621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264664306.

It is not an unprimeable number, because it can be changed into a prime (1264664309) 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 15 ways as a sum of consecutive naturals, for example, 124271 + ... + 134061.

It is an arithmetic number, because the mean of its divisors is an integer number (65435040).

Almost surely, 2^1264664306 is an apocalyptic number.

1264664306 is a deficient number, since it is larger than the sum of its proper divisors (829256974).

1264664306 is a wasteful number, since it uses less digits than its factorization.

1264664306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 1264664306 is about 35562.1189751117. The cubic root of 1264664306 is about 1081.4134174867.

The spelling of 1264664306 in words is "one billion, two hundred sixty-four million, six hundred sixty-four thousand, three hundred six".