18844898 has 8 divisors (see below), whose sum is σ = 28474092. Its totient is φ = 9353536.

The previous prime is 18844873. The next prime is 18844909. The reversal of 18844898 is 89844881.

It can be written as a sum of positive squares in 2 ways, for example, as 18464209 + 380689 = 4297^2 + 617^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34115 + ... + 34662.

Almost surely, 2^18844898 is an apocalyptic number.

18844898 is a deficient number, since it is larger than the sum of its proper divisors (9629194).

18844898 is a wasteful number, since it uses less digits than its factorization.

18844898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68916.

The product of its digits is 589824, while the sum is 50.

The square root of 18844898 is about 4341.0710659928. The cubic root of 18844898 is about 266.1120845975.

The spelling of 18844898 in words is "eighteen million, eight hundred forty-four thousand, eight hundred ninety-eight".