1288788 has 24 divisors (see below), whose sum is σ = 3027360. Its totient is φ = 426720.

The previous prime is 1288783. The next prime is 1288799. The reversal of 1288788 is 8878821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2278 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (126140).

2^1288788 is an apocalyptic number.

It is an amenable number.

1288788 is an abundant number, since it is smaller than the sum of its proper divisors (1738572).

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

1288788 is a wasteful number, since it uses less digits than its factorization.

1288788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 725 counting only the distinct ones).

The product of its digits is 57344, while the sum is 42.

The square root of 1288788 is about 1135.2479905289. The cubic root of 1288788 is about 108.8246204735.

It can be divided in two parts, 128 and 8788, that multiplied together give a cube (1124864 = 104³).

The spelling of 1288788 in words is "one million, two hundred eighty-eight thousand, seven hundred eighty-eight".