12204560 has 40 divisors (see below), whose sum is σ = 28521240. Its totient is φ = 4856832.

The previous prime is 12204557. The next prime is 12204581. The reversal of 12204560 is 6540221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3748096 + 8456464 = 1936^2 + 2908^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29636 + ... + 30044.

It is an arithmetic number, because the mean of its divisors is an integer number (713031).

Almost surely, 2^12204560 is an apocalyptic number.

12204560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12204560 is an abundant number, since it is smaller than the sum of its proper divisors (16316680).

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

12204560 is a wasteful number, since it uses less digits than its factorization.

12204560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12204560 is about 3493.5025404313. The cubic root of 12204560 is about 230.2364298451.

Adding to 12204560 its reverse (6540221), we get a palindrome (18744781).

The spelling of 12204560 in words is "twelve million, two hundred four thousand, five hundred sixty".