13312238 has 8 divisors (see below), whose sum is σ = 20088432. Its totient is φ = 6616096.

The previous prime is 13312231. The next prime is 13312253. The reversal of 13312238 is 83221331.

13312238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (13312231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19595 + ... + 20262.

It is an arithmetic number, because the mean of its divisors is an integer number (2511054).

Almost surely, 2^13312238 is an apocalyptic number.

13312238 is a deficient number, since it is larger than the sum of its proper divisors (6776194).

13312238 is a wasteful number, since it uses less digits than its factorization.

13312238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40026.

The product of its digits is 864, while the sum is 23.

The square root of 13312238 is about 3648.5939757666. The cubic root of 13312238 is about 237.0010978722.

Adding to 13312238 its reverse (83221331), we get a palindrome (96533569).

The spelling of 13312238 in words is "thirteen million, three hundred twelve thousand, two hundred thirty-eight".