13332638 has 8 divisors (see below), whose sum is σ = 21817080. Its totient is φ = 6060280.

The previous prime is 13332637. The next prime is 13332653. The reversal of 13332638 is 83623331.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13332638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13332637) 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, 302993 + ... + 303036.

It is an arithmetic number, because the mean of its divisors is an integer number (2727135).

Almost surely, 2^13332638 is an apocalyptic number.

13332638 is a deficient number, since it is larger than the sum of its proper divisors (8484442).

13332638 is a wasteful number, since it uses less digits than its factorization.

13332638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606042.

The product of its digits is 7776, while the sum is 29.

The square root of 13332638 is about 3651.3885030218. The cubic root of 13332638 is about 237.1220981836.

Adding to 13332638 its reverse (83623331), we get a palindrome (96955969).

The spelling of 13332638 in words is "thirteen million, three hundred thirty-two thousand, six hundred thirty-eight".