16005385 has 8 divisors (see below), whose sum is σ = 20952576. Its totient is φ = 11640240.

The previous prime is 16005383. The next prime is 16005389. The reversal of 16005385 is 58350061.

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

It is not a de Polignac number, because 16005385 - 2¹ = 16005383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16005383) 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, 145449 + ... + 145558.

It is an arithmetic number, because the mean of its divisors is an integer number (2619072).

Almost surely, 2^16005385 is an apocalyptic number.

It is an amenable number.

16005385 is a deficient number, since it is larger than the sum of its proper divisors (4947191).

16005385 is a wasteful number, since it uses less digits than its factorization.

16005385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291023.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 16005385 is about 4000.6730683724. The cubic root of 16005385 is about 252.0124762866.

The spelling of 16005385 in words is "sixteen million, five thousand, three hundred eighty-five".