404040004444 has 12 divisors (see below), whose sum is σ = 716020261600. Its totient is φ = 199462786848.

The previous prime is 404040004427. The next prime is 404040004451. The reversal of 404040004444 is 444400040404.

It is a super-2 number, since 2×404040004444² (a number of 24 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 639303489 + ... + 639304120.

Almost surely, 2^404040004444 is an apocalyptic number.

It is an amenable number.

404040004444 is a deficient number, since it is larger than the sum of its proper divisors (311980257156).

404040004444 is a wasteful number, since it uses less digits than its factorization.

404040004444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278607692 (or 1278607690 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 404040004444 its reverse (444400040404), we get a palindrome (848440044848).

The spelling of 404040004444 in words is "four hundred four billion, forty million, four thousand, four hundred forty-four".