16042985 has 32 divisors (see below), whose sum is σ = 23742720. Its totient is φ = 10156032.

The previous prime is 16042981. The next prime is 16043023. The reversal of 16042985 is 58924061.

It is a cyclic number.

It is not a de Polignac number, because 16042985 - 2² = 16042981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16042981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34877 + ... + 35333.

It is an arithmetic number, because the mean of its divisors is an integer number (741960).

Almost surely, 2^16042985 is an apocalyptic number.

It is an amenable number.

16042985 is a deficient number, since it is larger than the sum of its proper divisors (7699735).

16042985 is a wasteful number, since it uses less digits than its factorization.

16042985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 16042985 is about 4005.3695210305. The cubic root of 16042985 is about 252.2096653091.

The spelling of 16042985 in words is "sixteen million, forty-two thousand, nine hundred eighty-five".