1280568 has 32 divisors (see below), whose sum is σ = 3229200. Its totient is φ = 423168.

The previous prime is 1280567. The next prime is 1280597. The reversal of 1280568 is 8650821.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5380 + ... + 5612.

2^1280568 is an apocalyptic number.

It is an amenable number.

1280568 is an abundant number, since it is smaller than the sum of its proper divisors (1948632).

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

1280568 is a wasteful number, since it uses less digits than its factorization.

1280568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1280568 is about 1131.6218449641. The cubic root of 1280568 is about 108.5927625930.

The spelling of 1280568 in words is "one million, two hundred eighty thousand, five hundred sixty-eight".