16490185 has 12 divisors (see below), whose sum is σ = 20231748. Its totient is φ = 12902816.

The previous prime is 16490179. The next prime is 16490207. The reversal of 16490185 is 58109461.

It can be written as a sum of positive squares in 2 ways, for example, as 10517049 + 5973136 = 3243^2 + 2444^2 .

It is not a de Polignac number, because 16490185 - 2⁹ = 16489673 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 16490185.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10299 + ... + 11791.

It is an arithmetic number, because the mean of its divisors is an integer number (1685979).

Almost surely, 2^16490185 is an apocalyptic number.

It is an amenable number.

16490185 is a deficient number, since it is larger than the sum of its proper divisors (3741563).

16490185 is an equidigital number, since it uses as much as digits as its factorization.

16490185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 16490185 is about 4060.8108796151. The cubic root of 16490185 is about 254.5316791981.

The spelling of 16490185 in words is "sixteen million, four hundred ninety thousand, one hundred eighty-five".