18104190 has 64 divisors (see below), whose sum is σ = 47621952. Its totient is φ = 4377600.

The previous prime is 18104183. The next prime is 18104221. The reversal of 18104190 is 9140181.

It is a super-2 number, since 2×18104190² = 655523391112200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18104190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23410 + ... + 24170.

It is an arithmetic number, because the mean of its divisors is an integer number (744093).

Almost surely, 2^18104190 is an apocalyptic number.

18104190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18104190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23810976).

18104190 is an abundant number, since it is smaller than the sum of its proper divisors (29517762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18104190 is a wasteful number, since it uses less digits than its factorization.

18104190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 18104190 is about 4254.9018790097. The cubic root of 18104190 is about 262.5788244005.

The spelling of 18104190 in words is "eighteen million, one hundred four thousand, one hundred ninety".