204436042534 has 8 divisors (see below), whose sum is σ = 309367816920. Its totient is φ = 101313436896.

The previous prime is 204436042523. The next prime is 204436042549. The reversal of 204436042534 is 435240634402.

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

It is a junction number, because it is equal to n+sod(n) for n = 204436042493 and 204436042502.

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, 452291904 + ... + 452292355.

It is an arithmetic number, because the mean of its divisors is an integer number (38670977115).

Almost surely, 2^204436042534 is an apocalyptic number.

204436042534 is a deficient number, since it is larger than the sum of its proper divisors (104931774386).

204436042534 is a wasteful number, since it uses less digits than its factorization.

204436042534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904584374.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 204436042534 its reverse (435240634402), we get a palindrome (639676676936).

The spelling of 204436042534 in words is "two hundred four billion, four hundred thirty-six million, forty-two thousand, five hundred thirty-four".