1266629 has 16 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 967680.

The previous prime is 1266611. The next prime is 1266631. The reversal of 1266629 is 9266621.

It is not a de Polignac number, because 1266629 - 2⁸ = 1266373 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1266595 and 1266604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266229) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2597 + ... + 3045.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1266629 is an apocalyptic number.

It is an amenable number.

1266629 is a deficient number, since it is larger than the sum of its proper divisors (346171).

1266629 is a wasteful number, since it uses less digits than its factorization.

1266629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its digits is 7776, while the sum is 32.

The square root of 1266629 is about 1125.4461337621. The cubic root of 1266629 is about 108.1973130489.

The spelling of 1266629 in words is "one million, two hundred sixty-six thousand, six hundred twenty-nine".