16494273 has 20 divisors (see below), whose sum is σ = 24763860. Its totient is φ = 10940832.

The previous prime is 16494253. The next prime is 16494287. The reversal of 16494273 is 37249461.

16494273 is a `hidden beast` number, since 1 + 649 + 4 + 2 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4981824 + 11512449 = 2232^2 + 3393^2 .

It is not a de Polignac number, because 16494273 - 2⁸ = 16494017 is a prime.

It is a super-2 number, since 2×16494273² = 544122083597058, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16494253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21411 + ... + 22167.

It is an arithmetic number, because the mean of its divisors is an integer number (1238193).

Almost surely, 2^16494273 is an apocalyptic number.

It is an amenable number.

16494273 is a deficient number, since it is larger than the sum of its proper divisors (8269587).

16494273 is an equidigital number, since it uses as much as digits as its factorization.

16494273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1029 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 16494273 is about 4061.3141961685. The cubic root of 16494273 is about 254.5527106891.

The spelling of 16494273 in words is "sixteen million, four hundred ninety-four thousand, two hundred seventy-three".