13491238 has 8 divisors (see below), whose sum is σ = 20253240. Its totient is φ = 6740160.

The previous prime is 13491227. The next prime is 13491241. The reversal of 13491238 is 83219431.

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

It is a congruent number.

It is an unprimeable number.

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, 1993 + ... + 5563.

It is an arithmetic number, because the mean of its divisors is an integer number (2531655).

Almost surely, 2^13491238 is an apocalyptic number.

13491238 is a deficient number, since it is larger than the sum of its proper divisors (6762002).

13491238 is a wasteful number, since it uses less digits than its factorization.

13491238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462.

The product of its digits is 5184, while the sum is 31.

The square root of 13491238 is about 3673.0420634673. The cubic root of 13491238 is about 238.0586325426.

The spelling of 13491238 in words is "thirteen million, four hundred ninety-one thousand, two hundred thirty-eight".