204242332420 has 48 divisors (see below), whose sum is σ = 496386455040. Its totient is φ = 69139534464.

The previous prime is 204242332351. The next prime is 204242332429. The reversal of 204242332420 is 24233242402.

It is a happy number.

204242332420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (204242332429) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9222319 + ... + 9244438.

It is an arithmetic number, because the mean of its divisors is an integer number (10341384480).

Almost surely, 2^204242332420 is an apocalyptic number.

204242332420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204242332420 is an abundant number, since it is smaller than the sum of its proper divisors (292144122620).

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

204242332420 is a wasteful number, since it uses less digits than its factorization.

204242332420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18466852 (or 18466850 counting only the distinct ones).

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

Adding to 204242332420 its reverse (24233242402), we get a palindrome (228475574822).

The spelling of 204242332420 in words is "two hundred four billion, two hundred forty-two million, three hundred thirty-two thousand, four hundred twenty".