3680920 has 32 divisors (see below), whose sum is σ = 8644320. Its totient is φ = 1408000.

The previous prime is 3680917. The next prime is 3680947. The reversal of 3680920 is 290863.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (270135).

Almost surely, 2^3680920 is an apocalyptic number.

It is an amenable number.

3680920 is an abundant number, since it is smaller than the sum of its proper divisors (4963400).

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

3680920 is a wasteful number, since it uses less digits than its factorization.

3680920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035 (or 4031 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3680920 is about 1918.5723859162. The cubic root of 3680920 is about 154.4017172530.

It can be divided in two parts, 3680 and 920, that multiplied together give a square (3385600 = 1840²).

The spelling of 3680920 in words is "three million, six hundred eighty thousand, nine hundred twenty".