204745730 has 16 divisors (see below), whose sum is σ = 421191360. Its totient is φ = 70198512.

The previous prime is 204745693. The next prime is 204745733. The reversal of 204745730 is 37547402.

It is not an unprimeable number, because it can be changed into a prime (204745733) 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, 1462400 + ... + 1462539.

It is an arithmetic number, because the mean of its divisors is an integer number (26324460).

Almost surely, 2^204745730 is an apocalyptic number.

204745730 is an abundant number, since it is smaller than the sum of its proper divisors (216445630).

204745730 is a wasteful number, since it uses less digits than its factorization.

204745730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924953.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 204745730 is about 14308.9388146012. The cubic root of 204745730 is about 589.3929694564.

The spelling of 204745730 in words is "two hundred four million, seven hundred forty-five thousand, seven hundred thirty".