1128872 has 16 divisors (see below), whose sum is σ = 2146740. Its totient is φ = 556416.

The previous prime is 1128823. The next prime is 1128889. The reversal of 1128872 is 2788211.

It can be written as a sum of positive squares in 2 ways, for example, as 1110916 + 17956 = 1054^2 + 134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 1550.

2^1128872 is an apocalyptic number.

It is an amenable number.

1128872 is a deficient number, since it is larger than the sum of its proper divisors (1017868).

1128872 is a wasteful number, since it uses less digits than its factorization.

1128872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012 (or 2008 counting only the distinct ones).

The product of its digits is 1792, while the sum is 29.

The square root of 1128872 is about 1062.4838822307. The cubic root of 1128872 is about 104.1233742943.

The spelling of 1128872 in words is "one million, one hundred twenty-eight thousand, eight hundred seventy-two".