3680478 has 24 divisors (see below), whose sum is σ = 8270808. Its totient is φ = 1226664.

The previous prime is 3680461. The next prime is 3680489. The reversal of 3680478 is 8740863.

3680478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 3301 + ... + 4272.

It is an arithmetic number, because the mean of its divisors is an integer number (344617).

Almost surely, 2^3680478 is an apocalyptic number.

3680478 is an abundant number, since it is smaller than the sum of its proper divisors (4590330).

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

3680478 is an equidigital number, since it uses as much as digits as its factorization.

3680478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590 (or 7578 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3680478 is about 1918.4571926420. The cubic root of 3680478 is about 154.3955368876.

The spelling of 3680478 in words is "three million, six hundred eighty thousand, four hundred seventy-eight".