12040560 has 120 divisors (see below), whose sum is σ = 46232160. Its totient is φ = 2750976.

The previous prime is 12040537. The next prime is 12040571. The reversal of 12040560 is 6504021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×12040560² = 289950170227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 3846 + ... + 6234.

It is an arithmetic number, because the mean of its divisors is an integer number (385268).

Almost surely, 2^12040560 is an apocalyptic number.

12040560 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 12040560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23116080).

12040560 is an abundant number, since it is smaller than the sum of its proper divisors (34191600).

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

12040560 is a wasteful number, since it uses less digits than its factorization.

12040560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12040560 is about 3469.9510082997. The cubic root of 12040560 is about 229.2005007162.

Adding to 12040560 its reverse (6504021), we get a palindrome (18544581).

The spelling of 12040560 in words is "twelve million, forty thousand, five hundred sixty".