3805660 has 12 divisors (see below), whose sum is σ = 7991928. Its totient is φ = 1522256.

The previous prime is 3805639. The next prime is 3805663. The reversal of 3805660 is 665083.

3805660 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3805663) by changing a digit.

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, 95122 + ... + 95161.

It is an arithmetic number, because the mean of its divisors is an integer number (665994).

Almost surely, 2^3805660 is an apocalyptic number.

It is an amenable number.

3805660 is an abundant number, since it is smaller than the sum of its proper divisors (4186268).

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

3805660 is a wasteful number, since it uses less digits than its factorization.

3805660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190292 (or 190290 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 3805660 is about 1950.8100881429. The cubic root of 3805660 is about 156.1265136329.

It can be divided in two parts, 3805 and 660, that added together give a triangular number (4465 = T₉₄).

The spelling of 3805660 in words is "three million, eight hundred five thousand, six hundred sixty".