12636342 has 24 divisors (see below), whose sum is σ = 27444144. Its totient is φ = 4202064.

The previous prime is 12636329. The next prime is 12636347. The reversal of 12636342 is 24363621.

12636342 is a `hidden beast` number, since 1 + 26 + 3 + 634 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12636347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14388 + ... + 15240.

It is an arithmetic number, because the mean of its divisors is an integer number (1143506).

Almost surely, 2^12636342 is an apocalyptic number.

12636342 is an abundant number, since it is smaller than the sum of its proper divisors (14807802).

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

12636342 is a wasteful number, since it uses less digits than its factorization.

12636342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1681 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 12636342 is about 3554.7632832581. The cubic root of 12636342 is about 232.9201836310.

Adding to 12636342 its reverse (24363621), we get a palindrome (36999963).

The spelling of 12636342 in words is "twelve million, six hundred thirty-six thousand, three hundred forty-two".