204122423040 has 72 divisors (see below), whose sum is σ = 651916000848. Its totient is φ = 54432645120.

The previous prime is 204122423039. The next prime is 204122423053. The reversal of 204122423040 is 40324221402.

204122423040 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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 204122423040.

It is a congruent number.

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, 26574601 + ... + 26582280.

Almost surely, 2^204122423040 is an apocalyptic number.

204122423040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204122423040 is an abundant number, since it is smaller than the sum of its proper divisors (447793577808).

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

204122423040 is an equidigital number, since it uses as much as digits as its factorization.

204122423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53156905 (or 53156891 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 204122423040 its reverse (40324221402), we get a palindrome (244446644442).

The spelling of 204122423040 in words is "two hundred four billion, one hundred twenty-two million, four hundred twenty-three thousand, forty".