2684861140 has 24 divisors (see below), whose sum is σ = 6071917320. Its totient is φ = 991333248.

The previous prime is 2684861111. The next prime is 2684861143. The reversal of 2684861140 is 411684862.

It can be written as a sum of positive squares in 4 ways, for example, as 45778756 + 2639082384 = 6766^2 + 51372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2684861093 and 2684861102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684861143) 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, 5162935 + ... + 5163454.

It is an arithmetic number, because the mean of its divisors is an integer number (252996555).

Almost surely, 2^2684861140 is an apocalyptic number.

2684861140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2684861140 is an abundant number, since it is smaller than the sum of its proper divisors (3387056180).

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

2684861140 is a wasteful number, since it uses less digits than its factorization.

2684861140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10326411 (or 10326409 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 2684861140 is about 51815.6457066782. The cubic root of 2684861140 is about 1389.8692387733.

The spelling of 2684861140 in words is "two billion, six hundred eighty-four million, eight hundred sixty-one thousand, one hundred forty".