204043534 has 32 divisors (see below), whose sum is σ = 328458240. Its totient is φ = 94846752.

The previous prime is 204043529. The next prime is 204043547. The reversal of 204043534 is 435340402.

It is a junction number, because it is equal to n+sod(n) for n = 204043499 and 204043508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309297 + ... + 309955.

It is an arithmetic number, because the mean of its divisors is an integer number (10264320).

Almost surely, 2^204043534 is an apocalyptic number.

204043534 is a deficient number, since it is larger than the sum of its proper divisors (124414706).

204043534 is a wasteful number, since it uses less digits than its factorization.

204043534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 204043534 is about 14284.3807706180. The cubic root of 204043534 is about 588.7184036187.

Adding to 204043534 its reverse (435340402), we get a palindrome (639383936).

The spelling of 204043534 in words is "two hundred four million, forty-three thousand, five hundred thirty-four".