13306636 has 18 divisors (see below), whose sum is σ = 27088908. Its totient is φ = 5702760.

The previous prime is 13306619. The next prime is 13306637. The reversal of 13306636 is 63660331.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (13306637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33750 + ... + 34141.

Almost surely, 2^13306636 is an apocalyptic number.

It is an amenable number.

13306636 is an abundant number, since it is smaller than the sum of its proper divisors (13782272).

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

13306636 is a wasteful number, since it uses less digits than its factorization.

13306636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67909 (or 67900 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 13306636 is about 3647.8262020003. The cubic root of 13306636 is about 236.9678486061.

Adding to 13306636 its reverse (63660331), we get a palindrome (76966967).

The spelling of 13306636 in words is "thirteen million, three hundred six thousand, six hundred thirty-six".