204350090 has 48 divisors (see below), whose sum is σ = 433382400. Its totient is φ = 69162912.

The previous prime is 204350089. The next prime is 204350093. The reversal of 204350090 is 90053402.

It is not an unprimeable number, because it can be changed into a prime (204350093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36071 + ... + 41349.

It is an arithmetic number, because the mean of its divisors is an integer number (9028800).

Almost surely, 2^204350090 is an apocalyptic number.

204350090 is an abundant number, since it is smaller than the sum of its proper divisors (229032310).

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

204350090 is a wasteful number, since it uses less digits than its factorization.

204350090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379 (or 5372 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 204350090 is about 14295.1072049146. The cubic root of 204350090 is about 589.0130872229.

The spelling of 204350090 in words is "two hundred four million, three hundred fifty thousand, ninety".