404135045405 has 32 divisors (see below), whose sum is σ = 597451545600. Its totient is φ = 255557659392.

The previous prime is 404135045381. The next prime is 404135045417. The reversal of 404135045405 is 504540531404.

It is not a de Polignac number, because 404135045405 - 2¹⁰ = 404135044381 is a prime.

It is a super-2 number, since 2×404135045405² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 31 ways as a sum of consecutive naturals, for example, 45311 + ... + 900179.

It is an arithmetic number, because the mean of its divisors is an integer number (18670360800).

Almost surely, 2^404135045405 is an apocalyptic number.

It is an amenable number.

404135045405 is a deficient number, since it is larger than the sum of its proper divisors (193316500195).

404135045405 is a wasteful number, since it uses less digits than its factorization.

404135045405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855933.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 404135045405 its reverse (504540531404), we get a palindrome (908675576809).

The spelling of 404135045405 in words is "four hundred four billion, one hundred thirty-five million, forty-five thousand, four hundred five".