3882640 has 20 divisors (see below), whose sum is σ = 9027324. Its totient is φ = 1553024.

The previous prime is 3882601. The next prime is 3882643. The reversal of 3882640 is 462883.

It is a happy number.

3882640 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 1373584 = 1584^2 + 1172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (3882643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24187 + ... + 24346.

Almost surely, 2^3882640 is an apocalyptic number.

It is an amenable number.

3882640 is an abundant number, since it is smaller than the sum of its proper divisors (5144684).

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

3882640 is a wasteful number, since it uses less digits than its factorization.

3882640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48546 (or 48540 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 3882640 is about 1970.4415748760. The cubic root of 3882640 is about 157.1721912967.

The spelling of 3882640 in words is "three million, eight hundred eighty-two thousand, six hundred forty".