1266648 has 32 divisors (see below), whose sum is σ = 3207600. Its totient is φ = 416768.

The previous prime is 1266631. The next prime is 1266677. The reversal of 1266648 is 8466621.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1840 + ... + 2432.

2^1266648 is an apocalyptic number.

It is an amenable number.

1266648 is an abundant number, since it is smaller than the sum of its proper divisors (1940952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266648 is a wasteful number, since it uses less digits than its factorization.

1266648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 687 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 1266648 is about 1125.4545748274. The cubic root of 1266648 is about 108.1978540489.

The spelling of 1266648 in words is "one million, two hundred sixty-six thousand, six hundred forty-eight".