13231338 has 16 divisors (see below), whose sum is σ = 28019520. Its totient is φ = 4150976.

The previous prime is 13231333. The next prime is 13231343. The reversal of 13231338 is 83313231.

It is an interprime number because it is at equal distance from previous prime (13231333) and next prime (13231343).

It is a super-3 number, since 3×13231338³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13231331) 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 7 ways as a sum of consecutive naturals, for example, 64758 + ... + 64961.

It is an arithmetic number, because the mean of its divisors is an integer number (1751220).

Almost surely, 2^13231338 is an apocalyptic number.

13231338 is an abundant number, since it is smaller than the sum of its proper divisors (14788182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231338 is a wasteful number, since it uses less digits than its factorization.

13231338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129741.

The product of its digits is 1296, while the sum is 24.

The square root of 13231338 is about 3637.4906185446. The cubic root of 13231338 is about 236.5200277443.

Adding to 13231338 its reverse (83313231), we get a palindrome (96544569).

The spelling of 13231338 in words is "thirteen million, two hundred thirty-one thousand, three hundred thirty-eight".