204601220 has 12 divisors (see below), whose sum is σ = 429662604. Its totient is φ = 81840480.

The previous prime is 204601217. The next prime is 204601223. The reversal of 204601220 is 22106402.

204601220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204601217) and next prime (204601223).

It can be written as a sum of positive squares in 2 ways, for example, as 83028544 + 121572676 = 9112^2 + 11026^2 .

It is not an unprimeable number, because it can be changed into a prime (204601223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5115011 + ... + 5115050.

It is an arithmetic number, because the mean of its divisors is an integer number (35805217).

Almost surely, 2^204601220 is an apocalyptic number.

204601220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204601220 is an abundant number, since it is smaller than the sum of its proper divisors (225061384).

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

204601220 is a wasteful number, since it uses less digits than its factorization.

204601220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230070 (or 10230068 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 204601220 is about 14303.8882825615. Note that the first 3 decimals coincide. The cubic root of 204601220 is about 589.2542718560.

Adding to 204601220 its reverse (22106402), we get a palindrome (226707622).

The spelling of 204601220 in words is "two hundred four million, six hundred one thousand, two hundred twenty".