1280746 has 16 divisors (see below), whose sum is σ = 2056320. Its totient is φ = 596160.

The previous prime is 1280743. The next prime is 1280759. The reversal of 1280746 is 6470821.

It is not an unprimeable number, because it can be changed into a prime (1280743) 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 in 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2^1280746 is an apocalyptic number.

1280746 is a deficient number, since it is larger than the sum of its proper divisors (775574).

1280746 is a wasteful number, since it uses less digits than its factorization.

1280746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

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

The square root of 1280746 is about 1131.7004904125. The cubic root of 1280746 is about 108.5977938542.

The spelling of 1280746 in words is "one million, two hundred eighty thousand, seven hundred forty-six".