204130220 has 96 divisors (see below), whose sum is σ = 522547200. Its totient is φ = 65387520.

The previous prime is 204130219. The next prime is 204130231. The reversal of 204130220 is 22031402.

204130220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 204130195 and 204130204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473405 + ... + 473835.

It is an arithmetic number, because the mean of its divisors is an integer number (5443200).

Almost surely, 2^204130220 is an apocalyptic number.

204130220 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 204130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261273600).

204130220 is an abundant number, since it is smaller than the sum of its proper divisors (318416980).

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

204130220 is a wasteful number, since it uses less digits than its factorization.

204130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 204130220 is about 14287.4147416529. The cubic root of 204130220 is about 588.8017623301.

Adding to 204130220 its reverse (22031402), we get a palindrome (226161622).

The spelling of 204130220 in words is "two hundred four million, one hundred thirty thousand, two hundred twenty".