2684395520 has 56 divisors (see below), whose sum is σ = 6442254324. Its totient is φ = 1073741824.

The previous prime is 2684395513. The next prime is 2684395531. The reversal of 2684395520 is 255934862.

It can be written as a sum of positive squares in 2 ways, for example, as 2422214656 + 262180864 = 49216^2 + 16192^2 .

It is a zygodrome in base 4.

It is an unprimeable number.

In principle, a polygon with 2684395520 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192 + ... + 73728.

Almost surely, 2^2684395520 is an apocalyptic number.

2684395520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2684395520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3221127162).

2684395520 is an abundant number, since it is smaller than the sum of its proper divisors (3757858804).

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

2684395520 is an frugal number, since it uses more digits than its factorization.

2684395520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65568 (or 65544 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 2684395520 is about 51811.1524673984. The cubic root of 2684395520 is about 1389.7888884565.

The spelling of 2684395520 in words is "two billion, six hundred eighty-four million, three hundred ninety-five thousand, five hundred twenty".