13243442 has 8 divisors (see below), whose sum is σ = 21033756. Its totient is φ = 6232192.

The previous prime is 13243429. The next prime is 13243453. The reversal of 13243442 is 24434231.

It can be written as a sum of positive squares in 2 ways, for example, as 12752041 + 491401 = 3571^2 + 701^2 .

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

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, 194723 + ... + 194790.

Almost surely, 2^13243442 is an apocalyptic number.

13243442 is a deficient number, since it is larger than the sum of its proper divisors (7790314).

13243442 is a wasteful number, since it uses less digits than its factorization.

13243442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389532.

The product of its digits is 2304, while the sum is 23.

The square root of 13243442 is about 3639.1540225717. The cubic root of 13243442 is about 236.5921284365.

Adding to 13243442 its reverse (24434231), we get a palindrome (37677673).

The spelling of 13243442 in words is "thirteen million, two hundred forty-three thousand, four hundred forty-two".