1128200 has 24 divisors (see below), whose sum is σ = 2623530. Its totient is φ = 451200.

The previous prime is 1128181. The next prime is 1128209. The reversal of 1128200 is 28211.

It can be written as a sum of positive squares in 3 ways, for example, as 1085764 + 42436 = 1042^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (1128209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2621 + ... + 3020.

2^1128200 is an apocalyptic number.

1128200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128200 is an abundant number, since it is smaller than the sum of its proper divisors (1495330).

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

1128200 is a wasteful number, since it uses less digits than its factorization.

1128200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657 (or 5648 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1128200 is about 1062.1675950621. The cubic root of 1128200 is about 104.1027091831.

The spelling of 1128200 in words is "one million, one hundred twenty-eight thousand, two hundred".