3864140 has 36 divisors (see below), whose sum is σ = 9441936. Its totient is φ = 1324512.

The previous prime is 3864139. The next prime is 3864187. The reversal of 3864140 is 414683.

3864140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 992 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (262276).

Almost surely, 2^3864140 is an apocalyptic number.

It is an amenable number.

3864140 is an abundant number, since it is smaller than the sum of its proper divisors (5577796).

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

3864140 is a wasteful number, since it uses less digits than its factorization.

3864140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3957 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 3864140 is about 1965.7415903419. The cubic root of 3864140 is about 156.9221624519.

It can be divided in two parts, 3864 and 140, that added together give a palindrome (4004).

The spelling of 3864140 in words is "three million, eight hundred sixty-four thousand, one hundred forty".