404331240444 has 12 divisors (see below), whose sum is σ = 943439561064. Its totient is φ = 134777080144.

The previous prime is 404331240371. The next prime is 404331240463. The reversal of 404331240444 is 444042133404.

It is a tau number, because it is divible by the number of its divisors (12).

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, 16847135007 + ... + 16847135030.

It is an arithmetic number, because the mean of its divisors is an integer number (78619963422).

Almost surely, 2^404331240444 is an apocalyptic number.

It is an amenable number.

404331240444 is an abundant number, since it is smaller than the sum of its proper divisors (539108320620).

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

404331240444 is a wasteful number, since it uses less digits than its factorization.

404331240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33694270044 (or 33694270042 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 404331240444 its reverse (444042133404), we get a palindrome (848373373848).

The spelling of 404331240444 in words is "four hundred four billion, three hundred thirty-one million, two hundred forty thousand, four hundred forty-four".