13387238 has 8 divisors (see below), whose sum is σ = 20570760. Its totient is φ = 6530320.

The previous prime is 13387201. The next prime is 13387249. The reversal of 13387238 is 83278331.

13387238 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 junction number, because it is equal to n+sod(n) for n = 13387198 and 13387207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81548 + ... + 81711.

It is an arithmetic number, because the mean of its divisors is an integer number (2571345).

Almost surely, 2^13387238 is an apocalyptic number.

13387238 is a deficient number, since it is larger than the sum of its proper divisors (7183522).

13387238 is a wasteful number, since it uses less digits than its factorization.

13387238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163302.

The product of its digits is 24192, while the sum is 35.

The square root of 13387238 is about 3658.8574719439. The cubic root of 13387238 is about 237.4453458726.

The spelling of 13387238 in words is "thirteen million, three hundred eighty-seven thousand, two hundred thirty-eight".