204140434 has 8 divisors (see below), whose sum is σ = 306313020. Its totient is φ = 102036096.

The previous prime is 204140429. The next prime is 204140441. The reversal of 204140434 is 434041402.

It can be written as a sum of positive squares in 2 ways, for example, as 166281025 + 37859409 = 12895^2 + 6153^2 .

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

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, 8779 + ... + 22030.

Almost surely, 2^204140434 is an apocalyptic number.

204140434 is a deficient number, since it is larger than the sum of its proper divisors (102172586).

204140434 is a wasteful number, since it uses less digits than its factorization.

204140434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34124.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 204140434 is about 14287.7721846340. The cubic root of 204140434 is about 588.8115827295.

Adding to 204140434 its reverse (434041402), we get a palindrome (638181836).

The spelling of 204140434 in words is "two hundred four million, one hundred forty thousand, four hundred thirty-four".