1280560164 has 48 divisors (see below), whose sum is σ = 3247933248. Its totient is φ = 390331008.

The previous prime is 1280560153. The next prime is 1280560187. The reversal of 1280560164 is 4610650821.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21667 + ... + 55050.

It is an arithmetic number, because the mean of its divisors is an integer number (67665276).

Almost surely, 2^1280560164 is an apocalyptic number.

It is an amenable number.

1280560164 is an abundant number, since it is smaller than the sum of its proper divisors (1967373084).

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

1280560164 is a wasteful number, since it uses less digits than its factorization.

1280560164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76844 (or 76842 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1280560164 is about 35784.9153135787. The cubic root of 1280560164 is about 1085.9254109376.

The spelling of 1280560164 in words is "one billion, two hundred eighty million, five hundred sixty thousand, one hundred sixty-four".