12018560 has 64 divisors (see below), whose sum is σ = 29192400. Its totient is φ = 4730880.

The previous prime is 12018553. The next prime is 12018569. The reversal of 12018560 is 6581021.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56855 + ... + 57065.

Almost surely, 2^12018560 is an apocalyptic number.

12018560 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 12018560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14596200).

12018560 is an abundant number, since it is smaller than the sum of its proper divisors (17173840).

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

12018560 is an equidigital number, since it uses as much as digits as its factorization.

12018560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 12018560 is about 3466.7794853437. The cubic root of 12018560 is about 229.0608204679.

Adding to 12018560 its reverse (6581021), we get a palindrome (18599581).

The spelling of 12018560 in words is "twelve million, eighteen thousand, five hundred sixty".