12644724 has 12 divisors (see below), whose sum is σ = 29504384. Its totient is φ = 4214904.

The previous prime is 12644707. The next prime is 12644741. The reversal of 12644724 is 42744621.

It is an interprime number because it is at equal distance from previous prime (12644707) and next prime (12644741).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12644691 and 12644700.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 526852 + ... + 526875.

Almost surely, 2^12644724 is an apocalyptic number.

It is an amenable number.

12644724 is an abundant number, since it is smaller than the sum of its proper divisors (16859660).

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

12644724 is a wasteful number, since it uses less digits than its factorization.

12644724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053734 (or 1053732 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 12644724 is about 3555.9420692694. The cubic root of 12644724 is about 232.9716728320.

It can be divided in two parts, 126 and 44724, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 12644724 in words is "twelve million, six hundred forty-four thousand, seven hundred twenty-four".