204423002422340 has 192 divisors, whose sum is σ = 469028097366528. Its totient is φ = 74389321728000.

The previous prime is 204423002422337. The next prime is 204423002422367. The reversal of 204423002422340 is 43224200324402.

It is a junction number, because it is equal to n+sod(n) for n = 204423002422297 and 204423002422306.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14048718065 + ... + 14048732615.

It is an arithmetic number, because the mean of its divisors is an integer number (2442854673784).

Almost surely, 2^{204423002422340} is an apocalyptic number.

204423002422340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204423002422340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234514048683264).

204423002422340 is an abundant number, since it is smaller than the sum of its proper divisors (264605094944188).

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

204423002422340 is a wasteful number, since it uses less digits than its factorization.

204423002422340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16958 (or 16956 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 204423002422340 its reverse (43224200324402), we get a palindrome (247647202746742).

The spelling of 204423002422340 in words is "two hundred four trillion, four hundred twenty-three billion, two million, four hundred twenty-two thousand, three hundred forty".