12819742 has 8 divisors (see below), whose sum is σ = 20708856. Its totient is φ = 5916792.

The previous prime is 12819739. The next prime is 12819743. The reversal of 12819742 is 24791821.

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

It is a junction number, because it is equal to n+sod(n) for n = 12819698 and 12819707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12819743) by changing a digit.

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, 246508 + ... + 246559.

It is an arithmetic number, because the mean of its divisors is an integer number (2588607).

Almost surely, 2^12819742 is an apocalyptic number.

12819742 is a deficient number, since it is larger than the sum of its proper divisors (7889114).

12819742 is a wasteful number, since it uses less digits than its factorization.

12819742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493082.

The product of its digits is 8064, while the sum is 34.

The square root of 12819742 is about 3580.4667293525. The cubic root of 12819742 is about 234.0416196942.

The spelling of 12819742 in words is "twelve million, eight hundred nineteen thousand, seven hundred forty-two".