205323006 has 32 divisors (see below), whose sum is σ = 494012160. Its totient is φ = 55575936.

The previous prime is 205322977. The next prime is 205323029. The reversal of 205323006 is 600323502.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127851 + ... + 129446.

It is an arithmetic number, because the mean of its divisors is an integer number (15437880).

Almost surely, 2^205323006 is an apocalyptic number.

205323006 is an abundant number, since it is smaller than the sum of its proper divisors (288689154).

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

205323006 is a wasteful number, since it uses less digits than its factorization.

205323006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257328.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 205323006 is about 14329.0964823327. The cubic root of 205323006 is about 589.9463764345.

Adding to 205323006 its reverse (600323502), we get a palindrome (805646508).

The spelling of 205323006 in words is "two hundred five million, three hundred twenty-three thousand, six".