404222044420 has 48 divisors (see below), whose sum is σ = 852430748400. Its totient is φ = 161010455040.

The previous prime is 404222044399. The next prime is 404222044433. The reversal of 404222044420 is 24440222404.

It can be written as a sum of positive squares in 8 ways, for example, as 6331066624 + 397890977796 = 79568^2 + 630786^2 .

It is a super-2 number, since 2×404222044420² (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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11932066 + ... + 11965894.

It is an arithmetic number, because the mean of its divisors is an integer number (17758973925).

Almost surely, 2^404222044420 is an apocalyptic number.

It is an amenable number.

404222044420 is an abundant number, since it is smaller than the sum of its proper divisors (448208703980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404222044420 is a wasteful number, since it uses less digits than its factorization.

404222044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36328 (or 36326 counting only the distinct ones).

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

Adding to 404222044420 its reverse (24440222404), we get a palindrome (428662266824).

The spelling of 404222044420 in words is "four hundred four billion, two hundred twenty-two million, forty-four thousand, four hundred twenty".