3871056440 has 32 divisors (see below), whose sum is σ = 8712522000. Its totient is φ = 1547952384.

The previous prime is 3871056437. The next prime is 3871056463. The reversal of 3871056440 is 446501783.

It is a junction number, because it is equal to n+sod(n) for n = 3871056394 and 3871056403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138356 + ... + 163964.

Almost surely, 2^3871056440 is an apocalyptic number.

It is an amenable number.

3871056440 is an abundant number, since it is smaller than the sum of its proper divisors (4841465560).

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

3871056440 is a wasteful number, since it uses less digits than its factorization.

3871056440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29399 (or 29395 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 3871056440 is about 62217.8144907068. The cubic root of 3871056440 is about 1570.1573185427.

The spelling of 3871056440 in words is "three billion, eight hundred seventy-one million, fifty-six thousand, four hundred forty".