1280476 has 6 divisors (see below), whose sum is σ = 2240840. Its totient is φ = 640236.

The previous prime is 1280473. The next prime is 1280519. The reversal of 1280476 is 6740821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160056 + ... + 160063.

2^1280476 is an apocalyptic number.

It is an amenable number.

1280476 is a deficient number, since it is larger than the sum of its proper divisors (960364).

1280476 is a wasteful number, since it uses less digits than its factorization.

1280476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320123 (or 320121 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1280476 is about 1131.5811946122. The cubic root of 1280476 is about 108.5901619831.

It can be divided in two parts, 12804 and 76, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 1280476 in words is "one million, two hundred eighty thousand, four hundred seventy-six".