13836442 has 4 divisors (see below), whose sum is σ = 20754666. Its totient is φ = 6918220.

The previous prime is 13836439. The next prime is 13836443. The reversal of 13836442 is 24463831.

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., 13535041 + 301401 = 3679^2 + 549^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13836443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3459109 + ... + 3459112.

Almost surely, 2^13836442 is an apocalyptic number.

13836442 is a deficient number, since it is larger than the sum of its proper divisors (6918224).

13836442 is an equidigital number, since it uses as much as digits as its factorization.

13836442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918223.

The product of its digits is 13824, while the sum is 31.

The square root of 13836442 is about 3719.7368186473. The cubic root of 13836442 is about 240.0719807242.

The spelling of 13836442 in words is "thirteen million, eight hundred thirty-six thousand, four hundred forty-two".