12645628 has 6 divisors (see below), whose sum is σ = 22129856. Its totient is φ = 6322812.

The previous prime is 12645623. The next prime is 12645643. The reversal of 12645628 is 82654621.

It is a junction number, because it is equal to n+sod(n) for n = 12645593 and 12645602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580700 + ... + 1580707.

Almost surely, 2^12645628 is an apocalyptic number.

It is an amenable number.

12645628 is a deficient number, since it is larger than the sum of its proper divisors (9484228).

12645628 is a wasteful number, since it uses less digits than its factorization.

12645628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161411 (or 3161409 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 12645628 is about 3556.0691781797. The cubic root of 12645628 is about 232.9772245908.

It can be divided in two parts, 126 and 45628, that added together give a palindrome (45754).

The spelling of 12645628 in words is "twelve million, six hundred forty-five thousand, six hundred twenty-eight".