3828131860 has 72 divisors (see below), whose sum is σ = 9505032264. Its totient is φ = 1290965760.

The previous prime is 3828131821. The next prime is 3828131897. The reversal of 3828131860 is 681318283.

It can be written as a sum of positive squares in 4 ways, for example, as 340993156 + 3487138704 = 18466^2 + 59052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27762 + ... + 91798.

It is an arithmetic number, because the mean of its divisors is an integer number (132014337).

Almost surely, 2^3828131860 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 3828131860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4752516132).

3828131860 is an abundant number, since it is smaller than the sum of its proper divisors (5676900404).

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

3828131860 is a wasteful number, since it uses less digits than its factorization.

3828131860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64121 (or 64112 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 3828131860 is about 61871.8987909697. The cubic root of 3828131860 is about 1564.3321208456.

The spelling of 3828131860 in words is "three billion, eight hundred twenty-eight million, one hundred thirty-one thousand, eight hundred sixty".