1266826 has 16 divisors (see below), whose sum is σ = 2099520. Its totient is φ = 568480.

The previous prime is 1266799. The next prime is 1266841. The reversal of 1266826 is 6286621.

It is a super-2 number, since 2×1266826² = 3209696228552, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635 + ... + 2281.

It is an arithmetic number, because the mean of its divisors is an integer number (131220).

2^1266826 is an apocalyptic number.

1266826 is a deficient number, since it is larger than the sum of its proper divisors (832694).

1266826 is a wasteful number, since it uses less digits than its factorization.

1266826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its digits is 6912, while the sum is 31.

The square root of 1266826 is about 1125.5336512073. The cubic root of 1266826 is about 108.2029221014.

The spelling of 1266826 in words is "one million, two hundred sixty-six thousand, eight hundred twenty-six".