1280706 has 16 divisors (see below), whose sum is σ = 2927424. Its totient is φ = 365904.

The previous prime is 1280693. The next prime is 1280707. The reversal of 1280706 is 6070821.

It is not an unprimeable number, because it can be changed into a prime (1280707) 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, 15205 + ... + 15288.

It is an arithmetic number, because the mean of its divisors is an integer number (182964).

2^1280706 is an apocalyptic number.

1280706 is an abundant number, since it is smaller than the sum of its proper divisors (1646718).

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

1280706 is a wasteful number, since it uses less digits than its factorization.

1280706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30505.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1280706 is about 1131.6828177542. The cubic root of 1280706 is about 108.5966632743.

The spelling of 1280706 in words is "one million, two hundred eighty thousand, seven hundred six".