163800030 has 32 divisors (see below), whose sum is σ = 393560064. Its totient is φ = 43631136.

The previous prime is 163800023. The next prime is 163800031. The reversal of 163800030 is 30008361.

163800030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163800031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30099 + ... + 35121.

It is an arithmetic number, because the mean of its divisors is an integer number (12298752).

Almost surely, 2^163800030 is an apocalyptic number.

163800030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163800030 is an abundant number, since it is smaller than the sum of its proper divisors (229760034).

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

163800030 is a wasteful number, since it uses less digits than its factorization.

163800030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 163800030 is about 12798.4385766389. The cubic root of 163800030 is about 547.1478020919.

Adding to 163800030 its reverse (30008361), we get a palindrome (193808391).

The spelling of 163800030 in words is "one hundred sixty-three million, eight hundred thousand, thirty".