204005473 has 12 divisors (see below), whose sum is σ = 237545220. Its totient is φ = 174690432.

The previous prime is 204005471. The next prime is 204005479. The reversal of 204005473 is 374500402.

It can be written as a sum of positive squares in 2 ways, for example, as 165714129 + 38291344 = 12873^2 + 6188^2 .

It is not a de Polignac number, because 204005473 - 2¹ = 204005471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204005471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96613 + ... + 98701.

It is an arithmetic number, because the mean of its divisors is an integer number (19795435).

Almost surely, 2^204005473 is an apocalyptic number.

It is an amenable number.

204005473 is a deficient number, since it is larger than the sum of its proper divisors (33539747).

204005473 is a wasteful number, since it uses less digits than its factorization.

204005473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 204005473 is about 14283.0484491232. The cubic root of 204005473 is about 588.6817960639.

Adding to 204005473 its reverse (374500402), we get a palindrome (578505875).

The spelling of 204005473 in words is "two hundred four million, five thousand, four hundred seventy-three".