12739742 has 8 divisors (see below), whose sum is σ = 19189632. Its totient is φ = 6343200.

The previous prime is 12739721. The next prime is 12739763. The reversal of 12739742 is 24793721.

It is an interprime number because it is at equal distance from previous prime (12739721) and next prime (12739763).

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12734 + ... + 13697.

It is an arithmetic number, because the mean of its divisors is an integer number (2398704).

Almost surely, 2^12739742 is an apocalyptic number.

12739742 is a deficient number, since it is larger than the sum of its proper divisors (6449890).

12739742 is a wasteful number, since it uses less digits than its factorization.

12739742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26674.

The product of its digits is 21168, while the sum is 35.

The square root of 12739742 is about 3569.2775179299. The cubic root of 12739742 is about 233.5537676498.

The spelling of 12739742 in words is "twelve million, seven hundred thirty-nine thousand, seven hundred forty-two".