1132728 has 32 divisors (see below), whose sum is σ = 2864400. Its totient is φ = 373248.

The previous prime is 1132721. The next prime is 1132739. The reversal of 1132728 is 8272311.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1132698 and 1132707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132721) 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, 2400 + ... + 2832.

2^1132728 is an apocalyptic number.

It is an amenable number.

1132728 is an abundant number, since it is smaller than the sum of its proper divisors (1731672).

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

1132728 is a wasteful number, since it uses less digits than its factorization.

1132728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 547 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 1132728 is about 1064.2969510433. The cubic root of 1132728 is about 104.2417944073.

The spelling of 1132728 in words is "one million, one hundred thirty-two thousand, seven hundred twenty-eight".