3881471040 has 84 divisors (see below), whose sum is σ = 13350653004. Its totient is φ = 1035058176.

The previous prime is 3881471021. The next prime is 3881471063. The reversal of 3881471040 is 401741883.

It can be written as a sum of positive squares in 2 ways, for example, as 1905846336 + 1975624704 = 43656^2 + 44448^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3881470986 and 3881471004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670987 + ... + 676746.

Almost surely, 2^3881471040 is an apocalyptic number.

3881471040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3881471040 is an abundant number, since it is smaller than the sum of its proper divisors (9469181964).

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

3881471040 is a wasteful number, since it uses less digits than its factorization.

3881471040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347756 (or 1347743 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 3881471040 is about 62301.4529525596. The cubic root of 3881471040 is about 1571.5641625308.

The spelling of 3881471040 in words is "three billion, eight hundred eighty-one million, four hundred seventy-one thousand, forty".