16039885 has 8 divisors (see below), whose sum is σ = 19271160. Its totient is φ = 12816384.

The previous prime is 16039879. The next prime is 16039909. The reversal of 16039885 is 58893061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15876 + 16024009 = 126^2 + 4003^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16039885 - 2⁵ = 16039853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4621 + ... + 7309.

It is an arithmetic number, because the mean of its divisors is an integer number (2408895).

Almost surely, 2^16039885 is an apocalyptic number.

It is an amenable number.

16039885 is a deficient number, since it is larger than the sum of its proper divisors (3231275).

16039885 is a wasteful number, since it uses less digits than its factorization.

16039885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 16039885 is about 4004.9825218096. The cubic root of 16039885 is about 252.1934193647.

The spelling of 16039885 in words is "sixteen million, thirty-nine thousand, eight hundred eighty-five".