18341856 has 192 divisors, whose sum is σ = 60963840. Its totient is φ = 5322240.

The previous prime is 18341849. The next prime is 18341857. The reversal of 18341856 is 65814381.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18341856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18341857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258301 + ... + 258371.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^18341856 is an apocalyptic number.

18341856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18341856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30481920).

18341856 is an abundant number, since it is smaller than the sum of its proper divisors (42621984).

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

18341856 is a wasteful number, since it uses less digits than its factorization.

18341856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 112 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 18341856 is about 4282.7393103013. The cubic root of 18341856 is about 263.7228496419.

The spelling of 18341856 in words is "eighteen million, three hundred forty-one thousand, eight hundred fifty-six".