1266750 has 48 divisors (see below), whose sum is σ = 3431376. Its totient is φ = 337200.

The previous prime is 1266743. The next prime is 1266751. The reversal of 1266750 is 576621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266751) 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 23 ways as a sum of consecutive naturals, for example, 1969 + ... + 2531.

It is an arithmetic number, because the mean of its divisors is an integer number (71487).

2^1266750 is an apocalyptic number.

1266750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 1125×1126.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1715688).

1266750 is an abundant number, since it is smaller than the sum of its proper divisors (2164626).

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

1266750 is a wasteful number, since it uses less digits than its factorization.

1266750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1266750 is about 1125.4998889382. The cubic root of 1266750 is about 108.2007582719.

It can be divided in two parts, 1266 and 750, that added together give a triangular number (2016 = T₆₃).

The spelling of 1266750 in words is "one million, two hundred sixty-six thousand, seven hundred fifty".