13436404 has 6 divisors (see below), whose sum is σ = 23513714. Its totient is φ = 6718200.

The previous prime is 13436389. The next prime is 13436413. The reversal of 13436404 is 40463431.

It is a happy number.

13436404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 40804 = 3660^2 + 202^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1679547 + ... + 1679554.

Almost surely, 2^13436404 is an apocalyptic number.

It is an amenable number.

13436404 is a deficient number, since it is larger than the sum of its proper divisors (10077310).

13436404 is a wasteful number, since it uses less digits than its factorization.

13436404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359105 (or 3359103 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 13436404 is about 3665.5700784462. The cubic root of 13436404 is about 237.7356715134.

Adding to 13436404 its reverse (40463431), we get a palindrome (53899835).

The spelling of 13436404 in words is "thirteen million, four hundred thirty-six thousand, four hundred four".