820481204 has 12 divisors (see below), whose sum is σ = 1441181700. Its totient is φ = 408715008.

The previous prime is 820481203. The next prime is 820481219. The reversal of 820481204 is 402184028.

820481204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 497200804 + 323280400 = 22298^2 + 17980^2 .

It is a super-2 number, since 2×820481204² = 1346378812234579232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820481203) 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, 380189 + ... + 382340.

It is an arithmetic number, because the mean of its divisors is an integer number (120098475).

Almost surely, 2^820481204 is an apocalyptic number.

It is an amenable number.

820481204 is a deficient number, since it is larger than the sum of its proper divisors (620700496).

820481204 is a wasteful number, since it uses less digits than its factorization.

820481204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762802 (or 762800 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 820481204 is about 28644.0430805429. The cubic root of 820481204 is about 936.1732168405.

The spelling of 820481204 in words is "eight hundred twenty million, four hundred eighty-one thousand, two hundred four".