204200643 has 8 divisors (see below), whose sum is σ = 272790208. Its totient is φ = 135872424.

The previous prime is 204200639. The next prime is 204200671. The reversal of 204200643 is 346002402.

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

It is not a de Polignac number, because 204200643 - 2² = 204200639 is a prime.

It is a super-2 number, since 2×204200643² = 83395805203226898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204200603) 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, 63505 + ... + 66642.

It is an arithmetic number, because the mean of its divisors is an integer number (34098776).

Almost surely, 2^204200643 is an apocalyptic number.

204200643 is a deficient number, since it is larger than the sum of its proper divisors (68589565).

204200643 is a wasteful number, since it uses less digits than its factorization.

204200643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130673.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204200643 is about 14289.8790407757. The cubic root of 204200643 is about 588.8694648960.

The spelling of 204200643 in words is "two hundred four million, two hundred thousand, six hundred forty-three".