205440322 has 8 divisors (see below), whose sum is σ = 308387772. Its totient is φ = 102644400.

The previous prime is 205440307. The next prime is 205440329. The reversal of 205440322 is 223044502.

It can be written as a sum of positive squares in 2 ways, for example, as 205091041 + 349281 = 14321^2 + 591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 205440293 and 205440302.

It is not an unprimeable number, because it can be changed into a prime (205440329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34429 + ... + 39952.

Almost surely, 2^205440322 is an apocalyptic number.

205440322 is a deficient number, since it is larger than the sum of its proper divisors (102947450).

205440322 is a wasteful number, since it uses less digits than its factorization.

205440322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75764.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 205440322 is about 14333.1895264104. The cubic root of 205440322 is about 590.0587148308.

Adding to 205440322 its reverse (223044502), we get a palindrome (428484824).

The spelling of 205440322 in words is "two hundred five million, four hundred forty thousand, three hundred twenty-two".