205304030 has 16 divisors (see below), whose sum is σ = 369732384. Its totient is φ = 82080480.

The previous prime is 205304017. The next prime is 205304039. The reversal of 205304030 is 30403502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205304039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23324 + ... + 30896.

It is an arithmetic number, because the mean of its divisors is an integer number (23108274).

Almost surely, 2^205304030 is an apocalyptic number.

205304030 is a deficient number, since it is larger than the sum of its proper divisors (164428354).

205304030 is a wasteful number, since it uses less digits than its factorization.

205304030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 205304030 is about 14328.4343178171. The cubic root of 205304030 is about 589.9282015474.

Adding to 205304030 its reverse (30403502), we get a palindrome (235707532).

The spelling of 205304030 in words is "two hundred five million, three hundred four thousand, thirty".