1268289 has 24 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 733920.

The previous prime is 1268287. The next prime is 1268291. The reversal of 1268289 is 9828621.

It is an interprime number because it is at equal distance from previous prime (1268287) and next prime (1268291).

It is not a de Polignac number, because 1268289 - 2¹ = 1268287 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1268287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1999 + ... + 2555.

It is an arithmetic number, because the mean of its divisors is an integer number (87048).

2^1268289 is an apocalyptic number.

It is an amenable number.

1268289 is a deficient number, since it is larger than the sum of its proper divisors (820863).

1268289 is a wasteful number, since it uses less digits than its factorization.

1268289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 594 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1268289 is about 1126.1833776077. The cubic root of 1268289 is about 108.2445589629.

The spelling of 1268289 in words is "one million, two hundred sixty-eight thousand, two hundred eighty-nine".