204073605 has 24 divisors (see below), whose sum is σ = 362358360. Its totient is φ = 106183680.

The previous prime is 204073567. The next prime is 204073607. The reversal of 204073605 is 506370402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14130081 + 189943524 = 3759^2 + 13782^2 .

It is not a de Polignac number, because 204073605 - 2⁷ = 204073477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204073607) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 53460 + ... + 57149.

It is an arithmetic number, because the mean of its divisors is an integer number (15098265).

Almost surely, 2^204073605 is an apocalyptic number.

It is an amenable number.

204073605 is a deficient number, since it is larger than the sum of its proper divisors (158284755).

204073605 is a wasteful number, since it uses less digits than its factorization.

204073605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110661 (or 110658 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 204073605 is about 14285.4333150941. The cubic root of 204073605 is about 588.7473230706.

The spelling of 204073605 in words is "two hundred four million, seventy-three thousand, six hundred five".