404404122321042 has 16 divisors (see below), whose sum is σ = 828535274999712. Its totient is φ = 131513535714080.

The previous prime is 404404122321041. The next prime is 404404122321091. The reversal of 404404122321042 is 240123221404404.

It is a junction number, because it is equal to n+sod(n) for n = 404404122320994 and 404404122321012.

It is not an unprimeable number, because it can be changed into a prime (404404122321041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821959597968 + ... + 821959598459.

It is an arithmetic number, because the mean of its divisors is an integer number (51783454687482).

Almost surely, 2^{404404122321042} is an apocalyptic number.

404404122321042 is an abundant number, since it is smaller than the sum of its proper divisors (424131152678670).

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

404404122321042 is a wasteful number, since it uses less digits than its factorization.

404404122321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643919196473.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 404404122321042 its reverse (240123221404404), we get a palindrome (644527343725446).

The spelling of 404404122321042 in words is "four hundred four trillion, four hundred four billion, one hundred twenty-two million, three hundred twenty-one thousand, forty-two".