1800163200 has 192 divisors, whose sum is σ = 6468693120. Its totient is φ = 436377600.

The previous prime is 1800163199. The next prime is 1800163207. The reversal of 1800163200 is 23610081.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800163207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97077 + ... + 114123.

It is an arithmetic number, because the mean of its divisors is an integer number (33691110).

Almost surely, 2^1800163200 is an apocalyptic number.

1800163200 is a gapful number since it is divisible by the number (10) 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 1800163200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234346560).

1800163200 is an abundant number, since it is smaller than the sum of its proper divisors (4668529920).

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

1800163200 is a wasteful number, since it uses less digits than its factorization.

1800163200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17085 (or 17068 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1800163200 is about 42428.3301580442. The cubic root of 1800163200 is about 1216.4771615357.

Adding to 1800163200 its reverse (23610081), we get a palindrome (1823773281).

The spelling of 1800163200 in words is "one billion, eight hundred million, one hundred sixty-three thousand, two hundred".