204240202230340 has 24 divisors (see below), whose sum is σ = 428904701631000. Its totient is φ = 81696028140288.

The previous prime is 204240202230319. The next prime is 204240202230341. The reversal of 204240202230340 is 43032202042402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2234642296384 + 202005559933956 = 1494872^2 + 14212866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204240202230299 and 204240202230308.

It is not an unprimeable number, because it can be changed into a prime (204240202230341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47660536 + ... + 51768784.

It is an arithmetic number, because the mean of its divisors is an integer number (17871029234625).

Almost surely, 2^{204240202230340} is an apocalyptic number.

204240202230340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204240202230340 is an abundant number, since it is smaller than the sum of its proper divisors (224664499400660).

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

204240202230340 is a wasteful number, since it uses less digits than its factorization.

204240202230340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593991 (or 6593989 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 204240202230340 its reverse (43032202042402), we get a palindrome (247272404272742).

The spelling of 204240202230340 in words is "two hundred four trillion, two hundred forty billion, two hundred two million, two hundred thirty thousand, three hundred forty".