204311420 has 24 divisors (see below), whose sum is σ = 429450000. Its totient is φ = 81649152.

The previous prime is 204311417. The next prime is 204311431. The reversal of 204311420 is 24113402.

204311420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20891 + ... + 29069.

It is an arithmetic number, because the mean of its divisors is an integer number (17893750).

Almost surely, 2^204311420 is an apocalyptic number.

204311420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204311420 is an abundant number, since it is smaller than the sum of its proper divisors (225138580).

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

204311420 is a wasteful number, since it uses less digits than its factorization.

204311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437 (or 9435 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 204311420 is about 14293.7545802354. The cubic root of 204311420 is about 588.9759310971.

Adding to 204311420 its reverse (24113402), we get a palindrome (228424822).

The spelling of 204311420 in words is "two hundred four million, three hundred eleven thousand, four hundred twenty".