13038636 has 96 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 3684096.

The previous prime is 13038611. The next prime is 13038637. The reversal of 13038636 is 63683031.

13038636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13038637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157051 + ... + 157133.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^13038636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13038636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17781120).

13038636 is an abundant number, since it is smaller than the sum of its proper divisors (22523604).

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

13038636 is a wasteful number, since it uses less digits than its factorization.

13038636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 13038636 is about 3610.9051496820. The cubic root of 13038636 is about 235.3661772773.

The spelling of 13038636 in words is "thirteen million, thirty-eight thousand, six hundred thirty-six".