1288412 has 18 divisors (see below), whose sum is σ = 2341248. Its totient is φ = 620368.

The previous prime is 1288393. The next prime is 1288421. The reversal of 1288412 is 2148821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3173 + ... + 3555.

2^1288412 is an apocalyptic number.

It is an amenable number.

1288412 is a deficient number, since it is larger than the sum of its proper divisors (1052836).

1288412 is a wasteful number, since it uses less digits than its factorization.

1288412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 414 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 1288412 is about 1135.0823758653. The cubic root of 1288412 is about 108.8140363595.

The spelling of 1288412 in words is "one million, two hundred eighty-eight thousand, four hundred twelve".