16386243 has 8 divisors (see below), whose sum is σ = 22042128. Its totient is φ = 10827264.

The previous prime is 16386239. The next prime is 16386269. The reversal of 16386243 is 34268361.

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

It is not a de Polignac number, because 16386243 - 2² = 16386239 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16386203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23830 + ... + 24507.

It is an arithmetic number, because the mean of its divisors is an integer number (2755266).

Almost surely, 2^16386243 is an apocalyptic number.

16386243 is a deficient number, since it is larger than the sum of its proper divisors (5655885).

16386243 is a wasteful number, since it uses less digits than its factorization.

16386243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48453.

The product of its digits is 20736, while the sum is 33.

The square root of 16386243 is about 4047.9924654080. The cubic root of 16386243 is about 253.9957580873.

The spelling of 16386243 in words is "sixteen million, three hundred eighty-six thousand, two hundred forty-three".