205045404 has 24 divisors (see below), whose sum is σ = 478802688. Its totient is φ = 68296560.

The previous prime is 205045403. The next prime is 205045417. The reversal of 205045404 is 404540502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205045403) 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, 12099 + ... + 23589.

It is an arithmetic number, because the mean of its divisors is an integer number (19950112).

Almost surely, 2^205045404 is an apocalyptic number.

It is an amenable number.

205045404 is an abundant number, since it is smaller than the sum of its proper divisors (273757284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205045404 is a wasteful number, since it uses less digits than its factorization.

205045404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12985 (or 12983 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 205045404 is about 14319.4065519490. The cubic root of 205045404 is about 589.6803822823.

Adding to 205045404 its reverse (404540502), we get a palindrome (609585906).

The spelling of 205045404 in words is "two hundred five million, forty-five thousand, four hundred four".