3684534820 has 24 divisors (see below), whose sum is σ = 7796593728. Its totient is φ = 1462562400.

The previous prime is 3684534809. The next prime is 3684534827. The reversal of 3684534820 is 284354863.

3684534820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3684534827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700536 + ... + 705775.

It is an arithmetic number, because the mean of its divisors is an integer number (324858072).

Almost surely, 2^3684534820 is an apocalyptic number.

It is an amenable number.

3684534820 is an abundant number, since it is smaller than the sum of its proper divisors (4112058908).

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

3684534820 is a wasteful number, since it uses less digits than its factorization.

3684534820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406451 (or 1406449 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The square root of 3684534820 is about 60700.3691916285. The cubic root of 3684534820 is about 1544.5224373467.

The spelling of 3684534820 in words is "three billion, six hundred eighty-four million, five hundred thirty-four thousand, eight hundred twenty".