18805006 has 16 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 8527480.

The previous prime is 18804997. The next prime is 18805013. The reversal of 18805006 is 60050881.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 12465 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (1927800).

Almost surely, 2^18805006 is an apocalyptic number.

18805006 is a deficient number, since it is larger than the sum of its proper divisors (12039794).

18805006 is a wasteful number, since it uses less digits than its factorization.

18805006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 18805006 is about 4336.4739132157. The cubic root of 18805006 is about 265.9241779861.

Adding to 18805006 its reverse (60050881), we get a palindrome (78855887).

It can be divided in two parts, 1880 and 5006, that added together give a palindrome (6886).

The spelling of 18805006 in words is "eighteen million, eight hundred five thousand, six".