12305660 has 24 divisors (see below), whose sum is σ = 26013120. Its totient is φ = 4889664.

The previous prime is 12305659. The next prime is 12305669. The reversal of 12305660 is 6650321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181 + ... + 5099.

It is an arithmetic number, because the mean of its divisors is an integer number (1083880).

Almost surely, 2^12305660 is an apocalyptic number.

12305660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12305660 is an abundant number, since it is smaller than the sum of its proper divisors (13707460).

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

12305660 is a wasteful number, since it uses less digits than its factorization.

12305660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 12305660 is about 3507.9424168592. The cubic root of 12305660 is about 230.8704257608.

Adding to 12305660 its reverse (6650321), we get a palindrome (18955981).

The spelling of 12305660 in words is "twelve million, three hundred five thousand, six hundred sixty".