13038638 has 8 divisors (see below), whose sum is σ = 19634832. Its totient is φ = 6493696.

The previous prime is 13038637. The next prime is 13038647. The reversal of 13038638 is 83683031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

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

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, 12170 + ... + 13197.

It is an arithmetic number, because the mean of its divisors is an integer number (2454354).

Almost surely, 2^13038638 is an apocalyptic number.

13038638 is a deficient number, since it is larger than the sum of its proper divisors (6596194).

13038638 is a wasteful number, since it uses less digits than its factorization.

13038638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25626.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13038638 is about 3610.9054266209. The cubic root of 13038638 is about 235.3661893116.

The spelling of 13038638 in words is "thirteen million, thirty-eight thousand, six hundred thirty-eight".