3886628240 has 40 divisors (see below), whose sum is σ = 9857904768. Its totient is φ = 1413319040.

The previous prime is 3886628233. The next prime is 3886628243. The reversal of 3886628240 is 428266883.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (3886628243) by changing a digit.

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, 2207432 + ... + 2209191.

Almost surely, 2^3886628240 is an apocalyptic number.

It is an amenable number.

3886628240 is an abundant number, since it is smaller than the sum of its proper divisors (5971276528).

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

3886628240 is a wasteful number, since it uses less digits than its factorization.

3886628240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416647 (or 4416641 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 47.

The square root of 3886628240 is about 62342.8282964448. The cubic root of 3886628240 is about 1572.2598853373.

The spelling of 3886628240 in words is "three billion, eight hundred eighty-six million, six hundred twenty-eight thousand, two hundred forty".