820386302444 has 12 divisors (see below), whose sum is σ = 1435779256968. Its totient is φ = 410163657600.

The previous prime is 820386302441. The next prime is 820386302497. The reversal of 820386302444 is 444203683028.

It is a junction number, because it is equal to n+sod(n) for n = 820386302395 and 820386302404.

It is not an unprimeable number, because it can be changed into a prime (820386302441) 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, 7310762 + ... + 7422129.

It is an arithmetic number, because the mean of its divisors is an integer number (119648271414).

Almost surely, 2^820386302444 is an apocalyptic number.

It is an amenable number.

820386302444 is a deficient number, since it is larger than the sum of its proper divisors (615392954524).

820386302444 is a wasteful number, since it uses less digits than its factorization.

820386302444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14746816 (or 14746814 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 820386302444 in words is "eight hundred twenty billion, three hundred eighty-six million, three hundred two thousand, four hundred forty-four".