204231440002420 has 48 divisors (see below), whose sum is σ = 442722621777408. Its totient is φ = 79057052196480.

The previous prime is 204231440002417. The next prime is 204231440002453. The reversal of 204231440002420 is 24200044132402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300277854 + ... + 300957226.

It is an arithmetic number, because the mean of its divisors is an integer number (9223387953696).

Almost surely, 2^{204231440002420} is an apocalyptic number.

204231440002420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204231440002420 is an abundant number, since it is smaller than the sum of its proper divisors (238491181774988).

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

204231440002420 is a wasteful number, since it uses less digits than its factorization.

204231440002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164280 (or 1164278 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 204231440002420 its reverse (24200044132402), we get a palindrome (228431484134822).

The spelling of 204231440002420 in words is "two hundred four trillion, two hundred thirty-one billion, four hundred forty million, two thousand, four hundred twenty".