13608242 has 4 divisors (see below), whose sum is σ = 20412366. Its totient is φ = 6804120.

The previous prime is 13608223. The next prime is 13608247. The reversal of 13608242 is 24280631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 219961 = 3659^2 + 469^2 .

It is not an unprimeable number, because it can be changed into a prime (13608247) 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 as a sum of consecutive naturals, namely, 3402059 + ... + 3402062.

Almost surely, 2^13608242 is an apocalyptic number.

13608242 is a deficient number, since it is larger than the sum of its proper divisors (6804124).

13608242 is an equidigital number, since it uses as much as digits as its factorization.

13608242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804123.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13608242 is about 3688.9350766854. The cubic root of 13608242 is about 238.7448477091.

Adding to 13608242 its reverse (24280631), we get a palindrome (37888873).

The spelling of 13608242 in words is "thirteen million, six hundred eight thousand, two hundred forty-two".