3686240 has 24 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1474432.

The previous prime is 3686239. The next prime is 3686251. The reversal of 3686240 is 426863.

3686240 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 3 ways as a sum of consecutive naturals, for example, 11360 + ... + 11679.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^3686240 is an apocalyptic number.

It is an amenable number.

3686240 is an abundant number, since it is smaller than the sum of its proper divisors (5022880).

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

3686240 is a wasteful number, since it uses less digits than its factorization.

3686240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23054 (or 23046 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 3686240 is about 1919.9583328812. The cubic root of 3686240 is about 154.4760665754.

The spelling of 3686240 in words is "three million, six hundred eighty-six thousand, two hundred forty".