1268856 has 24 divisors (see below), whose sum is σ = 3436680. Its totient is φ = 422928.

The previous prime is 1268849. The next prime is 1268867. The reversal of 1268856 is 6588621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1268856.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8740 + ... + 8883.

It is an arithmetic number, because the mean of its divisors is an integer number (143195).

2^1268856 is an apocalyptic number.

It is an amenable number.

1268856 is an abundant number, since it is smaller than the sum of its proper divisors (2167824).

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

1268856 is a wasteful number, since it uses less digits than its factorization.

1268856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17635 (or 17628 counting only the distinct ones).

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

The square root of 1268856 is about 1126.4350846809. The cubic root of 1268856 is about 108.2606871275.

The spelling of 1268856 in words is "one million, two hundred sixty-eight thousand, eight hundred fifty-six".