404404022 has 24 divisors (see below), whose sum is σ = 667839816. Its totient is φ = 183524000.

The previous prime is 404404003. The next prime is 404404031. The reversal of 404404022 is 220404404.

It is a super-2 number, since 2×404404022² = 327085226019552968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404403985 and 404404003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234122 + ... + 235842.

It is an arithmetic number, because the mean of its divisors is an integer number (27826659).

Almost surely, 2^404404022 is an apocalyptic number.

404404022 is a deficient number, since it is larger than the sum of its proper divisors (263435794).

404404022 is a wasteful number, since it uses less digits than its factorization.

404404022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 404404022 is about 20109.7991536465. The cubic root of 404404022 is about 739.5005285472.

Adding to 404404022 its reverse (220404404), we get a palindrome (624808426).

The spelling of 404404022 in words is "four hundred four million, four hundred four thousand, twenty-two".