1100560 has 20 divisors (see below), whose sum is σ = 2558988. Its totient is φ = 440192.

The previous prime is 1100557. The next prime is 1100569. The reversal of 1100560 is 650011.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 913936 = 432^2 + 956^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1100560² = 2422464627200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100560.

It is not an unprimeable number, because it can be changed into a prime (1100569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6799 + ... + 6958.

2^1100560 is an apocalyptic number.

1100560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100560 is an abundant number, since it is smaller than the sum of its proper divisors (1458428).

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

1100560 is a wasteful number, since it uses less digits than its factorization.

1100560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13770 (or 13764 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1100560 is about 1049.0757837258. The cubic root of 1100560 is about 103.2455260546.

Adding to 1100560 its reverse (650011), we get a palindrome (1750571).

The spelling of 1100560 in words is "one million, one hundred thousand, five hundred sixty".