12638562 has 8 divisors (see below), whose sum is σ = 25277136. Its totient is φ = 4212852.

The previous prime is 12638551. The next prime is 12638581. The reversal of 12638562 is 26583621.

It is a sphenic number, since it is the product of 3 distinct primes.

12638562 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053208 + ... + 1053219.

It is an arithmetic number, because the mean of its divisors is an integer number (3159642).

Almost surely, 2^12638562 is an apocalyptic number.

12638562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12638562 is a wasteful number, since it uses less digits than its factorization.

12638562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106432.

The product of its digits is 17280, while the sum is 33.

The square root of 12638562 is about 3555.0755266239. The cubic root of 12638562 is about 232.9338229297.

The spelling of 12638562 in words is "twelve million, six hundred thirty-eight thousand, five hundred sixty-two".