204421433444140 has 96 divisors (see below), whose sum is σ = 468857342435328. Its totient is φ = 74248373472000.

The previous prime is 204421433444117. The next prime is 204421433444141. The reversal of 204421433444140 is 41444334124402.

It is a junction number, because it is equal to n+sod(n) for n = 204421433444093 and 204421433444102.

It is not an unprimeable number, because it can be changed into a prime (204421433444141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822725725 + ... + 822974155.

It is an arithmetic number, because the mean of its divisors is an integer number (4883930650368).

Almost surely, 2^{204421433444140} is an apocalyptic number.

204421433444140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204421433444140 is an abundant number, since it is smaller than the sum of its proper divisors (264435908991188).

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

204421433444140 is a wasteful number, since it uses less digits than its factorization.

204421433444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252799 (or 252797 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 40.

Adding to 204421433444140 its reverse (41444334124402), we get a palindrome (245865767568542).

The spelling of 204421433444140 in words is "two hundred four trillion, four hundred twenty-one billion, four hundred thirty-three million, four hundred forty-four thousand, one hundred forty".