13206238 has 8 divisors (see below), whose sum is σ = 19870200. Its totient is φ = 6582840.

The previous prime is 13206233. The next prime is 13206253. The reversal of 13206238 is 83260231.

13206238 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 super-2 number, since 2×13206238² = 348809444225288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206233) 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, 9313 + ... + 10636.

It is an arithmetic number, because the mean of its divisors is an integer number (2483775).

Almost surely, 2^13206238 is an apocalyptic number.

13206238 is a deficient number, since it is larger than the sum of its proper divisors (6663962).

13206238 is a wasteful number, since it uses less digits than its factorization.

13206238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20282.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 13206238 is about 3634.0388000130. The cubic root of 13206238 is about 236.3703726698.

Adding to 13206238 its reverse (83260231), we get a palindrome (96466469).

The spelling of 13206238 in words is "thirteen million, two hundred six thousand, two hundred thirty-eight".