13214638 has 8 divisors (see below), whose sum is σ = 20018520. Its totient is φ = 6541800.

The previous prime is 13214623. The next prime is 13214639. The reversal of 13214638 is 83641231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13214639) 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, 32508 + ... + 32911.

It is an arithmetic number, because the mean of its divisors is an integer number (2502315).

Almost surely, 2^13214638 is an apocalyptic number.

13214638 is a deficient number, since it is larger than the sum of its proper divisors (6803882).

13214638 is a wasteful number, since it uses less digits than its factorization.

13214638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65522.

The product of its digits is 3456, while the sum is 28.

The square root of 13214638 is about 3635.1943551893. The cubic root of 13214638 is about 236.4204775346.

Adding to 13214638 its reverse (83641231), we get a palindrome (96855869).

The spelling of 13214638 in words is "thirteen million, two hundred fourteen thousand, six hundred thirty-eight".