1112740728 has 64 divisors (see below), whose sum is σ = 3050611200. Its totient is φ = 335431680.

The previous prime is 1112740721. The next prime is 1112740747. The reversal of 1112740728 is 8270472111.

It is a super-3 number, since 3×1112740728³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112740721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40033 + ... + 61871.

It is an arithmetic number, because the mean of its divisors is an integer number (47665800).

Almost surely, 2^1112740728 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 1112740728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1525305600).

1112740728 is an abundant number, since it is smaller than the sum of its proper divisors (1937870472).

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

1112740728 is a wasteful number, since it uses less digits than its factorization.

1112740728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22052 (or 22048 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 1112740728 is about 33357.7686304105. The cubic root of 1112740728 is about 1036.2502811580.

The spelling of 1112740728 in words is "one billion, one hundred twelve million, seven hundred forty thousand, seven hundred twenty-eight".