404440343434 has 16 divisors (see below), whose sum is σ = 635322411648. Its totient is φ = 192729688272.

The previous prime is 404440343423. The next prime is 404440343563. The reversal of 404440343434 is 434343044404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404440343393 and 404440343402.

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 7 ways as a sum of consecutive naturals, for example, 15857622 + ... + 15883105.

It is an arithmetic number, because the mean of its divisors is an integer number (39707650728).

Almost surely, 2^404440343434 is an apocalyptic number.

404440343434 is a deficient number, since it is larger than the sum of its proper divisors (230882068214).

404440343434 is a wasteful number, since it uses less digits than its factorization.

404440343434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31741029.

The product of its (nonzero) digits is 442368, while the sum is 37.

Adding to 404440343434 its reverse (434343044404), we get a palindrome (838783387838).

The spelling of 404440343434 in words is "four hundred four billion, four hundred forty million, three hundred forty-three thousand, four hundred thirty-four".