1288268 has 6 divisors (see below), whose sum is σ = 2254476. Its totient is φ = 644132.

The previous prime is 1288249. The next prime is 1288291. The reversal of 1288268 is 8628821.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161030 + ... + 161037.

It is an arithmetic number, because the mean of its divisors is an integer number (375746).

2^1288268 is an apocalyptic number.

It is an amenable number.

1288268 is a deficient number, since it is larger than the sum of its proper divisors (966208).

1288268 is a wasteful number, since it uses less digits than its factorization.

1288268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322071 (or 322069 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 1288268 is about 1135.0189425732. The cubic root of 1288268 is about 108.8099823237.

The spelling of 1288268 in words is "one million, two hundred eighty-eight thousand, two hundred sixty-eight".