3856683140 has 24 divisors (see below), whose sum is σ = 8182533912. Its totient is φ = 1526768640.

The previous prime is 3856683101. The next prime is 3856683157. The reversal of 3856683140 is 413866583.

It can be written as a sum of positive squares in 4 ways, for example, as 6728836 + 3849954304 = 2594^2 + 62048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3856683091 and 3856683100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992051 + ... + 995930.

It is an arithmetic number, because the mean of its divisors is an integer number (340938913).

Almost surely, 2^3856683140 is an apocalyptic number.

It is an amenable number.

3856683140 is an abundant number, since it is smaller than the sum of its proper divisors (4325850772).

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

3856683140 is a wasteful number, since it uses less digits than its factorization.

3856683140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988087 (or 1988085 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 3856683140 is about 62102.1991559075. The cubic root of 3856683140 is about 1568.2115678573.

The spelling of 3856683140 in words is "three billion, eight hundred fifty-six million, six hundred eighty-three thousand, one hundred forty".