3820221840404 has 12 divisors (see below), whose sum is σ = 6700017082164. Its totient is φ = 1905931245504.

The previous prime is 3820221840403. The next prime is 3820221840427. The reversal of 3820221840404 is 4040481220283.

It can be written as a sum of positive squares in 2 ways, for example, as 1517203135504 + 2303018704900 = 1231748^2 + 1517570^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820221840403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044916619 + ... + 1044920274.

It is an arithmetic number, because the mean of its divisors is an integer number (558334756847).

Almost surely, 2^{3820221840404} is an apocalyptic number.

It is an amenable number.

3820221840404 is a deficient number, since it is larger than the sum of its proper divisors (2879795241760).

3820221840404 is a wasteful number, since it uses less digits than its factorization.

3820221840404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089837354 (or 2089837352 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The spelling of 3820221840404 in words is "three trillion, eight hundred twenty billion, two hundred twenty-one million, eight hundred forty thousand, four hundred four".