1128736 has 24 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 483648.

The previous prime is 1128731. The next prime is 1128737. The reversal of 1128736 is 6378211.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296 + ... + 2743.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1128736 is an apocalyptic number.

1128736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1128736 is an abundant number, since it is smaller than the sum of its proper divisors (1411424).

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

1128736 is an equidigital number, since it uses as much as digits as its factorization.

1128736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056 (or 5048 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 1128736 is about 1062.4198793321. The cubic root of 1128736 is about 104.1191927315.

The spelling of 1128736 in words is "one million, one hundred twenty-eight thousand, seven hundred thirty-six".