20104318 has 16 divisors (see below), whose sum is σ = 34186320. Its totient is φ = 8790336.

The previous prime is 20104313. The next prime is 20104333. The reversal of 20104318 is 81340102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20104295 and 20104304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104313) by changing a digit.

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, 19855 + ... + 20842.

It is an arithmetic number, because the mean of its divisors is an integer number (2136645).

Almost surely, 2^20104318 is an apocalyptic number.

20104318 is a deficient number, since it is larger than the sum of its proper divisors (14082002).

20104318 is a wasteful number, since it uses less digits than its factorization.

20104318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40731.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20104318 is about 4483.7838930974. The cubic root of 20104318 is about 271.9128811972.

It can be divided in two parts, 2010 and 4318, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 20104318 in words is "twenty million, one hundred four thousand, three hundred eighteen".