1268685 has 36 divisors (see below), whose sum is σ = 2427516. Its totient is φ = 612480.

The previous prime is 1268681. The next prime is 1268713. The reversal of 1268685 is 5868621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 915849 = 594^2 + 957^2 .

It is not a de Polignac number, because 1268685 - 2² = 1268681 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5329 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (67431).

2^1268685 is an apocalyptic number.

1268685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1268685 is a deficient number, since it is larger than the sum of its proper divisors (1158831).

1268685 is a wasteful number, since it uses less digits than its factorization.

1268685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 252 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 1268685 is about 1126.3591789478. The cubic root of 1268685 is about 108.2558235839.

It can be divided in two parts, 1268 and 685, that added together give a triangular number (1953 = T₆₂).

The spelling of 1268685 in words is "one million, two hundred sixty-eight thousand, six hundred eighty-five".