404420040044 has 6 divisors (see below), whose sum is σ = 707735070084. Its totient is φ = 202210020020.

The previous prime is 404420040043. The next prime is 404420040047. The reversal of 404420040044 is 440040024404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404420039995 and 404420040022.

It is not an unprimeable number, because it can be changed into a prime (404420040043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50552505002 + ... + 50552505009.

It is an arithmetic number, because the mean of its divisors is an integer number (117955845014).

Almost surely, 2^404420040044 is an apocalyptic number.

It is an amenable number.

404420040044 is a deficient number, since it is larger than the sum of its proper divisors (303315030040).

404420040044 is a wasteful number, since it uses less digits than its factorization.

404420040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101105010015 (or 101105010013 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404420040044 its reverse (440040024404), we get a palindrome (844460064448).

The spelling of 404420040044 in words is "four hundred four billion, four hundred twenty million, forty thousand, forty-four".