13436042 has 4 divisors (see below), whose sum is σ = 20154066. Its totient is φ = 6718020.

The previous prime is 13436029. The next prime is 13436053. The reversal of 13436042 is 24063431.

It is a happy number.

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., 7623121 + 5812921 = 2761^2 + 2411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13435999 and 13436017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359009 + ... + 3359012.

Almost surely, 2^13436042 is an apocalyptic number.

13436042 is a deficient number, since it is larger than the sum of its proper divisors (6718024).

13436042 is an equidigital number, since it uses as much as digits as its factorization.

13436042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718023.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 13436042 is about 3665.5206997097. The cubic root of 13436042 is about 237.7335364906.

Adding to 13436042 its reverse (24063431), we get a palindrome (37499473).

It can be divided in two parts, 134360 and 42, that multiplied together give a triangular number (5643120 = T₃₃₅₉).

The spelling of 13436042 in words is "thirteen million, four hundred thirty-six thousand, forty-two".