404134444040105 has 4 divisors (see below), whose sum is σ = 484961332848132. Its totient is φ = 323307555232080.

The previous prime is 404134444040101. The next prime is 404134444040141. The reversal of 404134444040105 is 501040444431404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 238101194358784 + 166033249681321 = 15430528^2 + 12885389^2 .

It is not a de Polignac number, because 404134444040105 - 2² = 404134444040101 is a prime.

It is a super-2 number, since 2×404134444040105² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404134444040101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40413444404006 + ... + 40413444404015.

It is an arithmetic number, because the mean of its divisors is an integer number (121240333212033).

Almost surely, 2^{404134444040105} is an apocalyptic number.

It is an amenable number.

404134444040105 is a deficient number, since it is larger than the sum of its proper divisors (80826888808027).

404134444040105 is an equidigital number, since it uses as much as digits as its factorization.

404134444040105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80826888808026.

The product of its (nonzero) digits is 245760, while the sum is 38.

Adding to 404134444040105 its reverse (501040444431404), we get a palindrome (905174888471509).

The spelling of 404134444040105 in words is "four hundred four trillion, one hundred thirty-four billion, four hundred forty-four million, forty thousand, one hundred five".