404004424044 has 96 divisors (see below), whose sum is σ = 1054826277120. Its totient is φ = 119493497088.

The previous prime is 404004424009. The next prime is 404004424069. The reversal of 404004424044 is 440424400404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 830247 + ... + 1223649.

It is an arithmetic number, because the mean of its divisors is an integer number (10987773720).

Almost surely, 2^404004424044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404004424044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527413138560).

404004424044 is an abundant number, since it is smaller than the sum of its proper divisors (650821853076).

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

404004424044 is a wasteful number, since it uses less digits than its factorization.

404004424044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393679 (or 393677 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 404004424044 its reverse (440424400404), we get a palindrome (844428824448).

The spelling of 404004424044 in words is "four hundred four billion, four million, four hundred twenty-four thousand, forty-four".