1280487608 has 8 divisors (see below), whose sum is σ = 2400914280. Its totient is φ = 640243800.

The previous prime is 1280487521. The next prime is 1280487619. The reversal of 1280487608 is 8067840821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 80030468 + ... + 80030483.

It is an arithmetic number, because the mean of its divisors is an integer number (300114285).

Almost surely, 2^1280487608 is an apocalyptic number.

It is an amenable number.

1280487608 is a deficient number, since it is larger than the sum of its proper divisors (1120426672).

1280487608 is a wasteful number, since it uses less digits than its factorization.

1280487608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160060957 (or 160060953 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 1280487608 is about 35783.9015200970. The cubic root of 1280487608 is about 1085.9049011913.

The spelling of 1280487608 in words is "one billion, two hundred eighty million, four hundred eighty-seven thousand, six hundred eight".