12624644 has 6 divisors (see below), whose sum is σ = 22093134. Its totient is φ = 6312320.

The previous prime is 12624641. The next prime is 12624649. The reversal of 12624644 is 44642621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9060100 + 3564544 = 3010^2 + 1888^2 .

It is a super-2 number, since 2×12624644² = 318763272253472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12624641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578077 + ... + 1578084.

It is an arithmetic number, because the mean of its divisors is an integer number (3682189).

Almost surely, 2^12624644 is an apocalyptic number.

It is an amenable number.

12624644 is a deficient number, since it is larger than the sum of its proper divisors (9468490).

12624644 is a wasteful number, since it uses less digits than its factorization.

12624644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156165 (or 3156163 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 12624644 is about 3553.1175043896. The cubic root of 12624644 is about 232.8482867288.

The spelling of 12624644 in words is "twelve million, six hundred twenty-four thousand, six hundred forty-four".