1280055286 has 8 divisors (see below), whose sum is σ = 1982021184. Its totient is φ = 619381560.

The previous prime is 1280055281. The next prime is 1280055319. The reversal of 1280055286 is 6825500821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280055281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10322965 + ... + 10323088.

It is an arithmetic number, because the mean of its divisors is an integer number (247752648).

Almost surely, 2^1280055286 is an apocalyptic number.

1280055286 is a deficient number, since it is larger than the sum of its proper divisors (701965898).

1280055286 is a wasteful number, since it uses less digits than its factorization.

1280055286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20646086.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 1280055286 is about 35777.8602769925. The cubic root of 1280055286 is about 1085.7826786309.

It can be divided in two parts, 12800 and 55286, that added together give a palindrome (68086).

The spelling of 1280055286 in words is "one billion, two hundred eighty million, fifty-five thousand, two hundred eighty-six".