13004236 has 12 divisors (see below), whose sum is σ = 26008528. Its totient is φ = 5573232.

The previous prime is 13004207. The next prime is 13004261. The reversal of 13004236 is 63240031.

13004236 is an admirable number.

It is a super-2 number, since 2×13004236² = 338220307887392, which contains 22 as substring.

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, 232191 + ... + 232246.

Almost surely, 2^13004236 is an apocalyptic number.

It is an amenable number.

13004236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13004236 is a wasteful number, since it uses less digits than its factorization.

13004236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464448 (or 464446 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13004236 is about 3606.1386551268. The cubic root of 13004236 is about 235.1590051108.

Adding to 13004236 its reverse (63240031), we get a palindrome (76244267).

The spelling of 13004236 in words is "thirteen million, four thousand, two hundred thirty-six".