204635045 has 8 divisors (see below), whose sum is σ = 245679480. Its totient is φ = 163629760.

The previous prime is 204634981. The next prime is 204635047. The reversal of 204635045 is 540536402.

It can be written as a sum of positive squares in 4 ways, for example, as 8579041 + 196056004 = 2929^2 + 14002^2 .

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

It is not a de Polignac number, because 204635045 - 2⁶ = 204634981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204634999 and 204635017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204635047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3311 + ... + 20499.

It is an arithmetic number, because the mean of its divisors is an integer number (30709935).

Almost surely, 2^204635045 is an apocalyptic number.

It is an amenable number.

204635045 is a deficient number, since it is larger than the sum of its proper divisors (41044435).

204635045 is a wasteful number, since it uses less digits than its factorization.

204635045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19575.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 204635045 is about 14305.0706045094. The cubic root of 204635045 is about 589.2867422187.

The spelling of 204635045 in words is "two hundred four million, six hundred thirty-five thousand, forty-five".