12645260 has 48 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 4731840.

The previous prime is 12645257. The next prime is 12645271. The reversal of 12645260 is 6254621.

It is a zygodrome in base 2.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40505 + ... + 40815.

It is an arithmetic number, because the mean of its divisors is an integer number (589680).

Almost surely, 2^12645260 is an apocalyptic number.

12645260 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 12645260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

12645260 is an abundant number, since it is smaller than the sum of its proper divisors (15659380).

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

12645260 is a wasteful number, since it uses less digits than its factorization.

12645260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 12645260 is about 3556.0174352778. The cubic root of 12645260 is about 232.9749646147.

Adding to 12645260 its reverse (6254621), we get a palindrome (18899881).

The spelling of 12645260 in words is "twelve million, six hundred forty-five thousand, two hundred sixty".