12742636 has 12 divisors (see below), whose sum is σ = 22843800. Its totient is φ = 6215840.

The previous prime is 12742633. The next prime is 12742637. The reversal of 12742636 is 63624721.

It is a junction number, because it is equal to n+sod(n) for n = 12742598 and 12742607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38686 + ... + 39013.

It is an arithmetic number, because the mean of its divisors is an integer number (1903650).

Almost surely, 2^12742636 is an apocalyptic number.

It is an amenable number.

12742636 is a deficient number, since it is larger than the sum of its proper divisors (10101164).

12742636 is a wasteful number, since it uses less digits than its factorization.

12742636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77744 (or 77742 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 12742636 is about 3569.6828990822. The cubic root of 12742636 is about 233.5714512478.

The spelling of 12742636 in words is "twelve million, seven hundred forty-two thousand, six hundred thirty-six".