206341220 has 12 divisors (see below), whose sum is σ = 433316604. Its totient is φ = 82536480.

The previous prime is 206341217. The next prime is 206341229. The reversal of 206341220 is 22143602.

It can be written as a sum of positive squares in 2 ways, for example, as 55591936 + 150749284 = 7456^2 + 12278^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10317061 = 206341220 / (2 + 0 + 6 + 3 + 4 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 206341192 and 206341201.

It is not an unprimeable number, because it can be changed into a prime (206341229) 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, 5158511 + ... + 5158550.

It is an arithmetic number, because the mean of its divisors is an integer number (36109717).

Almost surely, 2^206341220 is an apocalyptic number.

206341220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206341220 is an abundant number, since it is smaller than the sum of its proper divisors (226975384).

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

206341220 is a wasteful number, since it uses less digits than its factorization.

206341220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10317070 (or 10317068 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 206341220 is about 14364.5821380227. The cubic root of 206341220 is about 590.9199666781.

Adding to 206341220 its reverse (22143602), we get a palindrome (228484822).

The spelling of 206341220 in words is "two hundred six million, three hundred forty-one thousand, two hundred twenty".