12744538 has 8 divisors (see below), whose sum is σ = 19159488. Its totient is φ = 6358044.

The previous prime is 12744527. The next prime is 12744569. The reversal of 12744538 is 83544721.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5956 + ... + 7807.

It is an arithmetic number, because the mean of its divisors is an integer number (2394936).

Almost surely, 2^12744538 is an apocalyptic number.

12744538 is a deficient number, since it is larger than the sum of its proper divisors (6414950).

12744538 is a wasteful number, since it uses less digits than its factorization.

12744538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14228.

The product of its digits is 26880, while the sum is 34.

The square root of 12744538 is about 3569.9492993599. The cubic root of 12744538 is about 233.5830718366.

The spelling of 12744538 in words is "twelve million, seven hundred forty-four thousand, five hundred thirty-eight".