12644284 has 6 divisors (see below), whose sum is σ = 22127504. Its totient is φ = 6322140.

The previous prime is 12644267. The next prime is 12644293. The reversal of 12644284 is 48244621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580532 + ... + 1580539.

Almost surely, 2^12644284 is an apocalyptic number.

It is an amenable number.

12644284 is a deficient number, since it is larger than the sum of its proper divisors (9483220).

12644284 is a wasteful number, since it uses less digits than its factorization.

12644284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161075 (or 3161073 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 12644284 is about 3555.8802004567. The cubic root of 12644284 is about 232.9689705527.

The spelling of 12644284 in words is "twelve million, six hundred forty-four thousand, two hundred eighty-four".