404040220382 has 16 divisors (see below), whose sum is σ = 611824948992. Its totient is φ = 200099191320.

The previous prime is 404040220349. The next prime is 404040220403. The reversal of 404040220382 is 283022040404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177163 + ... + 1481145.

It is an arithmetic number, because the mean of its divisors is an integer number (38239059312).

Almost surely, 2^404040220382 is an apocalyptic number.

404040220382 is a deficient number, since it is larger than the sum of its proper divisors (207784728610).

404040220382 is a wasteful number, since it uses less digits than its factorization.

404040220382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310303.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 404040220382 its reverse (283022040404), we get a palindrome (687062260786).

The spelling of 404040220382 in words is "four hundred four billion, forty million, two hundred twenty thousand, three hundred eighty-two".