1268784 has 100 divisors (see below), whose sum is σ = 4051080. Its totient is φ = 380160.

The previous prime is 1268783. The next prime is 1268789. The reversal of 1268784 is 4878621.

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

It is a plaindrome in base 13.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1268783) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14212 + ... + 14300.

2^1268784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2025540).

1268784 is an abundant number, since it is smaller than the sum of its proper divisors (2782296).

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

1268784 is a wasteful number, since it uses less digits than its factorization.

1268784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 105 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 1268784 is about 1126.4031249957. The cubic root of 1268784 is about 108.2586393729.

The spelling of 1268784 in words is "one million, two hundred sixty-eight thousand, seven hundred eighty-four".