1288668412 has 12 divisors (see below), whose sum is σ = 2316120520. Its totient is φ = 626919696.

The previous prime is 1288668397. The next prime is 1288668421. The reversal of 1288668412 is 2148668821.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4353462 + ... + 4353757.

Almost surely, 2^1288668412 is an apocalyptic number.

It is an amenable number.

1288668412 is a deficient number, since it is larger than the sum of its proper divisors (1027452108).

1288668412 is a wasteful number, since it uses less digits than its factorization.

1288668412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707260 (or 8707258 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 1288668412 is about 35898.0279681210. The cubic root of 1288668412 is about 1088.2125438551.

The spelling of 1288668412 in words is "one billion, two hundred eighty-eight million, six hundred sixty-eight thousand, four hundred twelve".