204324343421240 has 32 divisors (see below), whose sum is σ = 525405454512480. Its totient is φ = 70054060601472.

The previous prime is 204324343421189. The next prime is 204324343421383. The reversal of 204324343421240 is 42124343423402.

It is a junction number, because it is equal to n+sod(n) for n = 204324343421194 and 204324343421203.

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, 364864898687 + ... + 364864899246.

It is an arithmetic number, because the mean of its divisors is an integer number (16418920453515).

Almost surely, 2^{204324343421240} is an apocalyptic number.

204324343421240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204324343421240 is an abundant number, since it is smaller than the sum of its proper divisors (321081111091240).

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

204324343421240 is a wasteful number, since it uses less digits than its factorization.

204324343421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729729797951 (or 729729797947 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 204324343421240 its reverse (42124343423402), we get a palindrome (246448686844642).

The spelling of 204324343421240 in words is "two hundred four trillion, three hundred twenty-four billion, three hundred forty-three million, four hundred twenty-one thousand, two hundred forty".