12726742 has 32 divisors (see below), whose sum is σ = 22763520. Its totient is φ = 5222880.

The previous prime is 12726739. The next prime is 12726743. The reversal of 12726742 is 24762721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12726743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40767 + ... + 41077.

It is an arithmetic number, because the mean of its divisors is an integer number (711360).

Almost surely, 2^12726742 is an apocalyptic number.

12726742 is a deficient number, since it is larger than the sum of its proper divisors (10036778).

12726742 is a wasteful number, since it uses less digits than its factorization.

12726742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its digits is 9408, while the sum is 31.

The square root of 12726742 is about 3567.4559562803. The cubic root of 12726742 is about 233.4742989471.

The spelling of 12726742 in words is "twelve million, seven hundred twenty-six thousand, seven hundred forty-two".