1128688 has 40 divisors (see below), whose sum is σ = 2450736. Its totient is φ = 503360.

The previous prime is 1128667. The next prime is 1128691. The reversal of 1128688 is 8868211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21270 + ... + 21322.

2^1128688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225368).

1128688 is an abundant number, since it is smaller than the sum of its proper divisors (1322048).

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

1128688 is an equidigital number, since it uses as much as digits as its factorization.

1128688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 66 counting only the distinct ones).

The product of its digits is 6144, while the sum is 34.

The square root of 1128688 is about 1062.3972891532. The cubic root of 1128688 is about 104.1177168056.

The spelling of 1128688 in words is "one million, one hundred twenty-eight thousand, six hundred eighty-eight".