3805284920 has 64 divisors (see below), whose sum is σ = 8716852800. Its totient is φ = 1494650880.

The previous prime is 3805284893. The next prime is 3805284929. The reversal of 3805284920 is 294825083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3805284929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241512 + ... + 2243208.

It is an arithmetic number, because the mean of its divisors is an integer number (136200825).

Almost surely, 2^3805284920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3805284920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4358426400).

3805284920 is an abundant number, since it is smaller than the sum of its proper divisors (4911567880).

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

3805284920 is a wasteful number, since it uses less digits than its factorization.

3805284920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 3805284920 is about 61686.9914973976. The cubic root of 3805284920 is about 1561.2138426794.

The spelling of 3805284920 in words is "three billion, eight hundred five million, two hundred eighty-four thousand, nine hundred twenty".