404044204402 has 8 divisors (see below), whose sum is σ = 616001820012. Its totient is φ = 198710264400.

The previous prime is 404044204381. The next prime is 404044204423. The reversal of 404044204402 is 204402440404.

It is an interprime number because it is at equal distance from previous prime (404044204381) and next prime (404044204423).

It can be written as a sum of positive squares in 2 ways, for example, as 307061165161 + 96983039241 = 554131^2 + 311421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×404044204402² (a number of 24 digits) contains 22 as substring.

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, 1655918749 + ... + 1655918992.

Almost surely, 2^404044204402 is an apocalyptic number.

404044204402 is a deficient number, since it is larger than the sum of its proper divisors (211957615610).

404044204402 is a wasteful number, since it uses less digits than its factorization.

404044204402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311837804.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 404044204402 its reverse (204402440404), we get a palindrome (608446644806).

The spelling of 404044204402 in words is "four hundred four billion, forty-four million, two hundred four thousand, four hundred two".