1280481288 has 64 divisors (see below), whose sum is σ = 3478425600. Its totient is φ = 391314240.

The previous prime is 1280481281. The next prime is 1280481299. The reversal of 1280481288 is 8821840821.

It is not an unprimeable number, because it can be changed into a prime (1280481281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31156 + ... + 59427.

It is an arithmetic number, because the mean of its divisors is an integer number (54350400).

Almost surely, 2^1280481288 is an apocalyptic number.

It is an amenable number.

1280481288 is an abundant number, since it is smaller than the sum of its proper divisors (2197944312).

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

1280481288 is a wasteful number, since it uses less digits than its factorization.

1280481288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90642 (or 90638 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 42.

The square root of 1280481288 is about 35783.8132121215. The cubic root of 1280481288 is about 1085.9031146504.

The spelling of 1280481288 in words is "one billion, two hundred eighty million, four hundred eighty-one thousand, two hundred eighty-eight".