204423331340 has 24 divisors (see below), whose sum is σ = 429297593760. Its totient is φ = 81767694848.

The previous prime is 204423331309. The next prime is 204423331379. The reversal of 204423331340 is 43133324402.

204423331340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204423331340² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668209 + ... + 1786551.

It is an arithmetic number, because the mean of its divisors is an integer number (17887399740).

Almost surely, 2^204423331340 is an apocalyptic number.

204423331340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204423331340 is an abundant number, since it is smaller than the sum of its proper divisors (224874262420).

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

204423331340 is a wasteful number, since it uses less digits than its factorization.

204423331340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204721 (or 204719 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 204423331340 its reverse (43133324402), we get a palindrome (247556655742).

The spelling of 204423331340 in words is "two hundred four billion, four hundred twenty-three million, three hundred thirty-one thousand, three hundred forty".