13864538 has 8 divisors (see below), whose sum is σ = 21701088. Its totient is φ = 6630844.

The previous prime is 13864531. The next prime is 13864549. The reversal of 13864538 is 83546831.

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

It is not an unprimeable number, because it can be changed into a prime (13864531) 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 3 ways as a sum of consecutive naturals, for example, 150656 + ... + 150747.

It is an arithmetic number, because the mean of its divisors is an integer number (2712636).

Almost surely, 2^13864538 is an apocalyptic number.

13864538 is a deficient number, since it is larger than the sum of its proper divisors (7836550).

13864538 is a wasteful number, since it uses less digits than its factorization.

13864538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301428.

The product of its digits is 69120, while the sum is 38.

The square root of 13864538 is about 3723.5115146861. The cubic root of 13864538 is about 240.2343659687.

The spelling of 13864538 in words is "thirteen million, eight hundred sixty-four thousand, five hundred thirty-eight".