204224090 has 64 divisors (see below), whose sum is σ = 446515200. Its totient is φ = 65753856.

The previous prime is 204224089. The next prime is 204224101. The reversal of 204224090 is 90422402.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 73751 + ... + 76469.

It is an arithmetic number, because the mean of its divisors is an integer number (6976800).

Almost surely, 2^204224090 is an apocalyptic number.

204224090 is an abundant number, since it is smaller than the sum of its proper divisors (242291110).

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

204224090 is a wasteful number, since it uses less digits than its factorization.

204224090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 204224090 is about 14290.6994230513. The cubic root of 204224090 is about 588.8920026865.

Adding to 204224090 its reverse (90422402), we get a palindrome (294646492).

The spelling of 204224090 in words is "two hundred four million, two hundred twenty-four thousand, ninety".