1264666 has 16 divisors (see below), whose sum is σ = 2064384. Its totient is φ = 577584.

The previous prime is 1264663. The next prime is 1264667. The reversal of 1264666 is 6664621.

It is not an unprimeable number, because it can be changed into a prime (1264663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3111 + ... + 3493.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2^1264666 is an apocalyptic number.

1264666 is a deficient number, since it is larger than the sum of its proper divisors (799718).

1264666 is a wasteful number, since it uses less digits than its factorization.

1264666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its digits is 10368, while the sum is 31.

The square root of 1264666 is about 1124.5736970070. The cubic root of 1264666 is about 108.1413900333.

The spelling of 1264666 in words is "one million, two hundred sixty-four thousand, six hundred sixty-six".