13604042 has 8 divisors (see below), whose sum is σ = 20423556. Its totient is φ = 6796192.

The previous prime is 13604033. The next prime is 13604051. The reversal of 13604042 is 24040631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13604033) and next prime (13604051).

It can be written as a sum of positive squares in 2 ways, for example, as 12524521 + 1079521 = 3539^2 + 1039^2 .

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

It is an unprimeable number.

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, 1118 + ... + 5334.

Almost surely, 2^13604042 is an apocalyptic number.

13604042 is a deficient number, since it is larger than the sum of its proper divisors (6819514).

13604042 is a wasteful number, since it uses less digits than its factorization.

13604042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13604042 is about 3688.3657627735. The cubic root of 13604042 is about 238.7202833915.

Adding to 13604042 its reverse (24040631), we get a palindrome (37644673).

The spelling of 13604042 in words is "thirteen million, six hundred four thousand, forty-two".