1280801288 has 32 divisors (see below), whose sum is σ = 2588376000. Its totient is φ = 590649408.

The previous prime is 1280801251. The next prime is 1280801293. The reversal of 1280801288 is 8821080821.

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, 141095 + ... + 149897.

It is an arithmetic number, because the mean of its divisors is an integer number (80886750).

Almost surely, 2^1280801288 is an apocalyptic number.

It is an amenable number.

1280801288 is an abundant number, since it is smaller than the sum of its proper divisors (1307574712).

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

1280801288 is a wasteful number, since it uses less digits than its factorization.

1280801288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221 (or 10217 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 38.

The square root of 1280801288 is about 35788.2842282220. The cubic root of 1280801288 is about 1085.9935650296.

The spelling of 1280801288 in words is "one billion, two hundred eighty million, eight hundred one thousand, two hundred eighty-eight".