1803243168 has 144 divisors (see below), whose sum is σ = 5367781440. Its totient is φ = 588946176.

The previous prime is 1803243149. The next prime is 1803243179. The reversal of 1803243168 is 8613423081.

1803243168 is a `hidden beast` number, since 18 + 0 + 324 + 316 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2426605 + ... + 2427347.

It is an arithmetic number, because the mean of its divisors is an integer number (37276260).

Almost surely, 2^1803243168 is an apocalyptic number.

1803243168 is a gapful number since it is divisible by the number (18) 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 1803243168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2683890720).

1803243168 is an abundant number, since it is smaller than the sum of its proper divisors (3564538272).

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

1803243168 is an equidigital number, since it uses as much as digits as its factorization.

1803243168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1803243168 is about 42464.6107717944. The cubic root of 1803243168 is about 1217.1705386625.

The spelling of 1803243168 in words is "one billion, eight hundred three million, two hundred forty-three thousand, one hundred sixty-eight".