204204204420 has 48 divisors (see below), whose sum is σ = 572325452160. Its totient is φ = 54401723136.

The previous prime is 204204204409. The next prime is 204204204427. The reversal of 204204204420 is 24402402402.

It is not an unprimeable number, because it can be changed into a prime (204204204427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1585360 + ... + 1709319.

It is an arithmetic number, because the mean of its divisors is an integer number (11923446920).

Almost surely, 2^204204204420 is an apocalyptic number.

204204204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204204204420 is an abundant number, since it is smaller than the sum of its proper divisors (368121247740).

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

204204204420 is a wasteful number, since it uses less digits than its factorization.

204204204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295724 (or 3295722 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 204204204420 its reverse (24402402402), we get a palindrome (228606606822).

The spelling of 204204204420 in words is "two hundred four billion, two hundred four million, two hundred four thousand, four hundred twenty".