1266772 has 24 divisors (see below), whose sum is σ = 2529576. Its totient is φ = 549888.

The previous prime is 1266767. The next prime is 1266779. The reversal of 1266772 is 2776621.

It can be written as a sum of positive squares in 4 ways, for example, as 318096 + 948676 = 564^2 + 974^2 .

It is a super-2 number, since 2×1266772² = 3209422599968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266779) 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, 168 + ... + 1600.

It is an arithmetic number, because the mean of its divisors is an integer number (105399).

2^1266772 is an apocalyptic number.

It is an amenable number.

1266772 is a deficient number, since it is larger than the sum of its proper divisors (1262804).

1266772 is a wasteful number, since it uses less digits than its factorization.

1266772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467 (or 1465 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 1266772 is about 1125.5096623308. The cubic root of 1266772 is about 108.2013846525.

The spelling of 1266772 in words is "one million, two hundred sixty-six thousand, seven hundred seventy-two".