3966140 has 24 divisors (see below), whose sum is σ = 8598912. Its totient is φ = 1535040.

The previous prime is 3966139. The next prime is 3966161. The reversal of 3966140 is 416693.

3966140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (358288).

Almost surely, 2^3966140 is an apocalyptic number.

It is an amenable number.

3966140 is an abundant number, since it is smaller than the sum of its proper divisors (4632772).

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

3966140 is a wasteful number, since it uses less digits than its factorization.

3966140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6437 (or 6435 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3966140 is about 1991.5170097190. The cubic root of 3966140 is about 158.2909236985.

The spelling of 3966140 in words is "three million, nine hundred sixty-six thousand, one hundred forty".