1280046 has 16 divisors (see below), whose sum is σ = 2571984. Its totient is φ = 424704.

The previous prime is 1280023. The next prime is 1280101. The reversal of 1280046 is 6400821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (160749).

2^1280046 is an apocalyptic number.

1280046 is an abundant number, since it is smaller than the sum of its proper divisors (1291938).

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

1280046 is a wasteful number, since it uses less digits than its factorization.

1280046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1280046 is about 1131.3911790358. The cubic root of 1280046 is about 108.5780053067.

Adding to 1280046 its reverse (6400821), we get a palindrome (7680867).

The spelling of 1280046 in words is "one million, two hundred eighty thousand, forty-six".