12638484 has 24 divisors (see below), whose sum is σ = 32766720. Its totient is φ = 4212792.

The previous prime is 12638471. The next prime is 12638491. The reversal of 12638484 is 48483621.

12638484 is a `hidden beast` number, since 12 + 638 + 4 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58404 + ... + 58619.

It is an arithmetic number, because the mean of its divisors is an integer number (1365280).

Almost surely, 2^12638484 is an apocalyptic number.

It is an amenable number.

12638484 is an abundant number, since it is smaller than the sum of its proper divisors (20128236).

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

12638484 is a wasteful number, since it uses less digits than its factorization.

12638484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117036 (or 117028 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 12638484 is about 3555.0645563759. The cubic root of 12638484 is about 232.9333437381.

The spelling of 12638484 in words is "twelve million, six hundred thirty-eight thousand, four hundred eighty-four".