204163960 has 128 divisors (see below), whose sum is σ = 616896000. Its totient is φ = 58728960.

The previous prime is 204163933. The next prime is 204163961. The reversal of 204163960 is 69361402.

204163960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204163961) 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, 37491 + ... + 42589.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 2^204163960 is an apocalyptic number.

204163960 is a gapful number since it is divisible by the number (20) 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 204163960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308448000).

204163960 is an abundant number, since it is smaller than the sum of its proper divisors (412732040).

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

204163960 is a wasteful number, since it uses less digits than its factorization.

204163960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141 (or 5137 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 204163960 is about 14288.5954523179. The cubic root of 204163960 is about 588.8342008996.

The spelling of 204163960 in words is "two hundred four million, one hundred sixty-three thousand, nine hundred sixty".