204243142404 has 72 divisors (see below), whose sum is σ = 554439432288. Its totient is φ = 58348321920.

The previous prime is 204243142379. The next prime is 204243142429. The reversal of 204243142404 is 404241342402.

204243142404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204243142379) and next prime (204243142429).

It is a super-2 number, since 2×204243142404² (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 23 ways as a sum of consecutive naturals, for example, 7084539 + ... + 7113309.

Almost surely, 2^204243142404 is an apocalyptic number.

It is an amenable number.

204243142404 is an abundant number, since it is smaller than the sum of its proper divisors (350196289884).

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

204243142404 is a wasteful number, since it uses less digits than its factorization.

204243142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40865 (or 40856 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 204243142404 its reverse (404241342402), we get a palindrome (608484484806).

The spelling of 204243142404 in words is "two hundred four billion, two hundred forty-three million, one hundred forty-two thousand, four hundred four".