13207638 has 8 divisors (see below), whose sum is σ = 26415288. Its totient is φ = 4402544.

The previous prime is 13207613. The next prime is 13207687. The reversal of 13207638 is 83670231.

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

13207638 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100631 + ... + 1100642.

It is an arithmetic number, because the mean of its divisors is an integer number (3301911).

Almost surely, 2^13207638 is an apocalyptic number.

13207638 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.

13207638 is a wasteful number, since it uses less digits than its factorization.

13207638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201278.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13207638 is about 3634.2314180580. The cubic root of 13207638 is about 236.3787249557.

Adding to 13207638 its reverse (83670231), we get a palindrome (96877869).

The spelling of 13207638 in words is "thirteen million, two hundred seven thousand, six hundred thirty-eight".