3680406 has 24 divisors (see below), whose sum is σ = 8170344. Its totient is φ = 1196640.

The previous prime is 3680401. The next prime is 3680407. The reversal of 3680406 is 6040863.

It is a self number, because there is not a number n which added to its sum of digits gives 3680406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756 + ... + 3231.

It is an arithmetic number, because the mean of its divisors is an integer number (340431).

Almost surely, 2^3680406 is an apocalyptic number.

3680406 is an abundant number, since it is smaller than the sum of its proper divisors (4489938).

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

3680406 is a wasteful number, since it uses less digits than its factorization.

3680406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036 (or 5033 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 3680406 is about 1918.4384274717. The cubic root of 3680406 is about 154.3945300844.

The spelling of 3680406 in words is "three million, six hundred eighty thousand, four hundred six".