13322638 has 16 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 5653656.

The previous prime is 13322633. The next prime is 13322651. The reversal of 13322638 is 83622331.

13322638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13322633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3178 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^13322638 is an apocalyptic number.

13322638 is a deficient number, since it is larger than the sum of its proper divisors (9740402).

13322638 is a wasteful number, since it uses less digits than its factorization.

13322638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9351.

The product of its digits is 5184, while the sum is 28.

The square root of 13322638 is about 3650.0189040606. The cubic root of 13322638 is about 237.0627997395.

Adding to 13322638 its reverse (83622331), we get a palindrome (96944969).

The spelling of 13322638 in words is "thirteen million, three hundred twenty-two thousand, six hundred thirty-eight".