404004040443 has 40 divisors (see below), whose sum is σ = 617675572800. Its totient is φ = 263017791792.

The previous prime is 404004040441. The next prime is 404004040471. The reversal of 404004040443 is 344040400404.

404004040443 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 404004040443 - 2¹ = 404004040441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (404004040441) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23184588 + ... + 23202006.

It is an arithmetic number, because the mean of its divisors is an integer number (15441889320).

Almost surely, 2^404004040443 is an apocalyptic number.

404004040443 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

404004040443 is a deficient number, since it is larger than the sum of its proper divisors (213671532357).

404004040443 is a wasteful number, since it uses less digits than its factorization.

404004040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24133 (or 24124 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 404004040443 its reverse (344040400404), we get a palindrome (748044440847).

The spelling of 404004040443 in words is "four hundred four billion, four million, forty thousand, four hundred forty-three".