12747042 has 96 divisors (see below), whose sum is σ = 36526464. Its totient is φ = 3110400.

The previous prime is 12747029. The next prime is 12747047. The reversal of 12747042 is 24074721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12746997 and 12747015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12747047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23292 + ... + 23832.

It is an arithmetic number, because the mean of its divisors is an integer number (380484).

Almost surely, 2^12747042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12747042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18263232).

12747042 is an abundant number, since it is smaller than the sum of its proper divisors (23779422).

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

12747042 is a wasteful number, since it uses less digits than its factorization.

12747042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 12747042 is about 3570.2999873960. The cubic root of 12747042 is about 233.5983686827.

The spelling of 12747042 in words is "twelve million, seven hundred forty-seven thousand, forty-two".