18842056 has 16 divisors (see below), whose sum is σ = 35694540. Its totient is φ = 9323520.

The previous prime is 18842029. The next prime is 18842071. The reversal of 18842056 is 65024881.

It can be written as a sum of positive squares in 2 ways, for example, as 17556100 + 1285956 = 4190^2 + 1134^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11365 + ... + 12916.

Almost surely, 2^18842056 is an apocalyptic number.

It is an amenable number.

18842056 is a deficient number, since it is larger than the sum of its proper divisors (16852484).

18842056 is a wasteful number, since it uses less digits than its factorization.

18842056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24384 (or 24380 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 18842056 is about 4340.7437150792. The cubic root of 18842056 is about 266.0987064661.

The spelling of 18842056 in words is "eighteen million, eight hundred forty-two thousand, fifty-six".