13243742 has 8 divisors (see below), whose sum is σ = 20327736. Its totient is φ = 6467832.

The previous prime is 13243739. The next prime is 13243751. The reversal of 13243742 is 24734231.

13243742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76913 + ... + 77084.

It is an arithmetic number, because the mean of its divisors is an integer number (2540967).

Almost surely, 2^13243742 is an apocalyptic number.

13243742 is a deficient number, since it is larger than the sum of its proper divisors (7083994).

13243742 is a wasteful number, since it uses less digits than its factorization.

13243742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154042.

The product of its digits is 4032, while the sum is 26.

The square root of 13243742 is about 3639.1952407091. The cubic root of 13243742 is about 236.5939149082.

Adding to 13243742 its reverse (24734231), we get a palindrome (37977973).

The spelling of 13243742 in words is "thirteen million, two hundred forty-three thousand, seven hundred forty-two".