1280847046 has 16 divisors (see below), whose sum is σ = 2013652224. Its totient is φ = 609875464.

The previous prime is 1280847041. The next prime is 1280847047. The reversal of 1280847046 is 6407480821.

It is a super-2 number, since 2×1280847046² = 3281138310493852232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280847041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50890 + ... + 71773.

It is an arithmetic number, because the mean of its divisors is an integer number (125853264).

Almost surely, 2^1280847046 is an apocalyptic number.

1280847046 is a deficient number, since it is larger than the sum of its proper divisors (732805178).

1280847046 is a wasteful number, since it uses less digits than its factorization.

1280847046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122915.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 1280847046 is about 35788.9235099353. The cubic root of 1280847046 is about 1086.0064976373.

The spelling of 1280847046 in words is "one billion, two hundred eighty million, eight hundred forty-seven thousand, forty-six".