1100728552 has 96 divisors (see below), whose sum is σ = 2629761120. Its totient is φ = 427109760.

The previous prime is 1100728537. The next prime is 1100728561. The reversal of 1100728552 is 2558270011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1711543 + ... + 1712185.

It is an arithmetic number, because the mean of its divisors is an integer number (27393345).

Almost surely, 2^1100728552 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 1100728552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314880560).

1100728552 is an abundant number, since it is smaller than the sum of its proper divisors (1529032568).

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

1100728552 is a wasteful number, since it uses less digits than its factorization.

1100728552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 1100728552 is about 33177.2294201912. The cubic root of 1100728552 is about 1032.5079650827.

Adding to 1100728552 its reverse (2558270011), we get a palindrome (3658998563).

The spelling of 1100728552 in words is "one billion, one hundred million, seven hundred twenty-eight thousand, five hundred fifty-two".