204424134040 has 32 divisors (see below), whose sum is σ = 525662059680. Its totient is φ = 70088274432.

The previous prime is 204424134023. The next prime is 204424134041. The reversal of 204424134040 is 40431424402.

204424134040 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204424134041) 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 7 ways as a sum of consecutive naturals, for example, 365042817 + ... + 365043376.

It is an arithmetic number, because the mean of its divisors is an integer number (16426939365).

Almost surely, 2^204424134040 is an apocalyptic number.

204424134040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204424134040 is an abundant number, since it is smaller than the sum of its proper divisors (321237925640).

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

204424134040 is a wasteful number, since it uses less digits than its factorization.

204424134040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730086211 (or 730086207 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 204424134040 its reverse (40431424402), we get a palindrome (244855558442).

The spelling of 204424134040 in words is "two hundred four billion, four hundred twenty-four million, one hundred thirty-four thousand, forty".