204044040424 has 64 divisors (see below), whose sum is σ = 441882604800. Its totient is φ = 86519616000.

The previous prime is 204044040419. The next prime is 204044040467. The reversal of 204044040424 is 424040440402.

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

It is a junction number, because it is equal to n+sod(n) for n = 204044040392 and 204044040401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8364357 + ... + 8388715.

It is an arithmetic number, because the mean of its divisors is an integer number (6904415700).

Almost surely, 2^204044040424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204044040424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220941302400).

204044040424 is an abundant number, since it is smaller than the sum of its proper divisors (237838564376).

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

204044040424 is a wasteful number, since it uses less digits than its factorization.

204044040424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25954 (or 25950 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 204044040424 its reverse (424040440402), we get a palindrome (628084480826).

The spelling of 204044040424 in words is "two hundred four billion, forty-four million, forty thousand, four hundred twenty-four".