16042885 has 8 divisors (see below), whose sum is σ = 19310616. Its totient is φ = 12794880.

The previous prime is 16042879. The next prime is 16042907. The reversal of 16042885 is 58824061.

It can be written as a sum of positive squares in 4 ways, for example, as 471969 + 15570916 = 687^2 + 3946^2 .

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

It is not a de Polignac number, because 16042885 - 2⁷ = 16042757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16042885.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3076 + ... + 6445.

It is an arithmetic number, because the mean of its divisors is an integer number (2413827).

Almost surely, 2^16042885 is an apocalyptic number.

It is an amenable number.

16042885 is a deficient number, since it is larger than the sum of its proper divisors (3267731).

16042885 is an equidigital number, since it uses as much as digits as its factorization.

16042885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9863.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 16042885 is about 4005.3570377683. The cubic root of 16042885 is about 252.2091412791.

It can be divided in two parts, 1604 and 2885, that added together give a square (4489 = 67²).

The spelling of 16042885 in words is "sixteen million, forty-two thousand, eight hundred eighty-five".