16442873 has 4 divisors (see below), whose sum is σ = 16462500. Its totient is φ = 16423248.

The previous prime is 16442869. The next prime is 16442897. The reversal of 16442873 is 37824461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12334144 + 4108729 = 3512^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 16442873 - 2² = 16442869 is a prime.

It is a super-3 number, since 3×16442873³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16442863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8498 + ... + 10251.

It is an arithmetic number, because the mean of its divisors is an integer number (4115625).

Almost surely, 2^16442873 is an apocalyptic number.

It is an amenable number.

16442873 is a deficient number, since it is larger than the sum of its proper divisors (19627).

16442873 is an equidigital number, since it uses as much as digits as its factorization.

16442873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19626.

The product of its digits is 32256, while the sum is 35.

The square root of 16442873 is about 4054.9812576632. The cubic root of 16442873 is about 254.2880203559.

The spelling of 16442873 in words is "sixteen million, four hundred forty-two thousand, eight hundred seventy-three".