1288012 has 24 divisors (see below), whose sum is σ = 2498832. Its totient is φ = 576000.

The previous prime is 1288009. The next prime is 1288013. The reversal of 1288012 is 2108821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1288013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3012 + ... + 3412.

It is an arithmetic number, because the mean of its divisors is an integer number (104118).

2^1288012 is an apocalyptic number.

It is an amenable number.

1288012 is a deficient number, since it is larger than the sum of its proper divisors (1210820).

1288012 is a wasteful number, since it uses less digits than its factorization.

1288012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1288012 is about 1134.9061635219. The cubic root of 1288012 is about 108.8027744030.

The spelling of 1288012 in words is "one million, two hundred eighty-eight thousand, twelve".