204734644 has 12 divisors (see below), whose sum is σ = 358874404. Its totient is φ = 102199104.

The previous prime is 204734639. The next prime is 204734657. The reversal of 204734644 is 446437402.

It can be written as a sum of positive squares in 2 ways, for example, as 26832400 + 177902244 = 5180^2 + 13338^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39297 + ... + 44200.

Almost surely, 2^204734644 is an apocalyptic number.

It is an amenable number.

204734644 is a deficient number, since it is larger than the sum of its proper divisors (154139760).

204734644 is a wasteful number, since it uses less digits than its factorization.

204734644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84114 (or 84112 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 34.

The square root of 204734644 is about 14308.5514291280. The cubic root of 204734644 is about 589.3823316629.

The spelling of 204734644 in words is "two hundred four million, seven hundred thirty-four thousand, six hundred forty-four".