404004431411 has 4 divisors (see below), whose sum is σ = 461719350192. Its totient is φ = 346289512632.

The previous prime is 404004431393. The next prime is 404004431437. The reversal of 404004431411 is 114134400404.

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

It is not a de Polignac number, because 404004431411 - 2²² = 404000237107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404004431471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28857459380 + ... + 28857459393.

It is an arithmetic number, because the mean of its divisors is an integer number (115429837548).

Almost surely, 2^404004431411 is an apocalyptic number.

404004431411 is a deficient number, since it is larger than the sum of its proper divisors (57714918781).

404004431411 is an equidigital number, since it uses as much as digits as its factorization.

404004431411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57714918780.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 404004431411 its reverse (114134400404), we get a palindrome (518138831815).

The spelling of 404004431411 in words is "four hundred four billion, four million, four hundred thirty-one thousand, four hundred eleven".