404004431034 has 24 divisors (see below), whose sum is σ = 887671710432. Its totient is φ = 132771408840.

The previous prime is 404004431029. The next prime is 404004431041. The reversal of 404004431034 is 430134400404.

It is a junction number, because it is equal to n+sod(n) for n = 404004430989 and 404004431007.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 158059924 + ... + 158062479.

It is an arithmetic number, because the mean of its divisors is an integer number (36986321268).

Almost surely, 2^404004431034 is an apocalyptic number.

404004431034 is an abundant number, since it is smaller than the sum of its proper divisors (483667279398).

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

404004431034 is a wasteful number, since it uses less digits than its factorization.

404004431034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316122482 (or 316122479 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 404004431034 its reverse (430134400404), we get a palindrome (834138831438).

The spelling of 404004431034 in words is "four hundred four billion, four million, four hundred thirty-one thousand, thirty-four".