2000104020 has 72 divisors (see below), whose sum is σ = 6072151176. Its totient is φ = 532906752.

The previous prime is 2000104019. The next prime is 2000104049. The reversal of 2000104020 is 204010002.

It can be written as a sum of positive squares in 4 ways, for example, as 692847684 + 1307256336 = 26322^2 + 36156^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2000103993 and 2000104011.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 243094 + ... + 251186.

It is an arithmetic number, because the mean of its divisors is an integer number (84335433).

Almost surely, 2^2000104020 is an apocalyptic number.

2000104020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000104020 is an abundant number, since it is smaller than the sum of its proper divisors (4072047156).

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

2000104020 is a wasteful number, since it uses less digits than its factorization.

2000104020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481 (or 9476 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2000104020 is about 44722.5225138297. The cubic root of 2000104020 is about 1259.9428923475.

Adding to 2000104020 its reverse (204010002), we get a palindrome (2204114022).

The spelling of 2000104020 in words is "two billion, one hundred four thousand, twenty".