2004520020 has 48 divisors (see below), whose sum is σ = 5806200960. Its totient is φ = 516105856.

The previous prime is 2004519953. The next prime is 2004520039. The reversal of 2004520020 is 200254002.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 574272 + ... + 577751.

It is an arithmetic number, because the mean of its divisors is an integer number (120962520).

Almost surely, 2^2004520020 is an apocalyptic number.

2004520020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004520020 is an abundant number, since it is smaller than the sum of its proper divisors (3801680940).

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

2004520020 is a wasteful number, since it uses less digits than its factorization.

2004520020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152064 (or 1152062 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2004520020 is about 44771.8663895085. The cubic root of 2004520020 is about 1260.8694804897.

Adding to 2004520020 its reverse (200254002), we get a palindrome (2204774022).

The spelling of 2004520020 in words is "two billion, four million, five hundred twenty thousand, twenty".