18842673 has 8 divisors (see below), whose sum is σ = 25150528. Its totient is φ = 12548304.

The previous prime is 18842651. The next prime is 18842693. The reversal of 18842673 is 37624881.

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

It is not a de Polignac number, because 18842673 - 2¹⁰ = 18841649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18842633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540 + ... + 6162.

It is an arithmetic number, because the mean of its divisors is an integer number (3143816).

Almost surely, 2^18842673 is an apocalyptic number.

It is an amenable number.

18842673 is a deficient number, since it is larger than the sum of its proper divisors (6307855).

18842673 is a wasteful number, since it uses less digits than its factorization.

18842673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743.

The product of its digits is 64512, while the sum is 39.

The square root of 18842673 is about 4340.8147852679. The cubic root of 18842673 is about 266.1016109812.

The spelling of 18842673 in words is "eighteen million, eight hundred forty-two thousand, six hundred seventy-three".