11128560 has 80 divisors (see below), whose sum is σ = 34953120. Its totient is φ = 2928640.

The previous prime is 11128531. The next prime is 11128567. The reversal of 11128560 is 6582111.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a self number, because there is not a number n which added to its sum of digits gives 11128560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11128567) 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, 21100 + ... + 21620.

It is an arithmetic number, because the mean of its divisors is an integer number (436914).

Almost surely, 2^11128560 is an apocalyptic number.

11128560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11128560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17476560).

11128560 is an abundant number, since it is smaller than the sum of its proper divisors (23824560).

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

11128560 is a wasteful number, since it uses less digits than its factorization.

11128560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 11128560 is about 3335.9496399077. The cubic root of 11128560 is about 223.2610642136.

The spelling of 11128560 in words is "eleven million, one hundred twenty-eight thousand, five hundred sixty".