12645336 has 64 divisors (see below), whose sum is σ = 36316800. Its totient is φ = 3628800.

The previous prime is 12645319. The next prime is 12645337. The reversal of 12645336 is 63354621.

12645336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3756 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (567450).

Almost surely, 2^12645336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12645336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18158400).

12645336 is an abundant number, since it is smaller than the sum of its proper divisors (23671464).

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

12645336 is a wasteful number, since it uses less digits than its factorization.

12645336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2556 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 12645336 is about 3556.0281213736. The cubic root of 12645336 is about 232.9754313525.

Adding to 12645336 its reverse (63354621), we get a palindrome (75999957).

The spelling of 12645336 in words is "twelve million, six hundred forty-five thousand, three hundred thirty-six".