3678404 has 12 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 1835208.

The previous prime is 3678391. The next prime is 3678407. The reversal of 3678404 is 4048763.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3678407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (537600).

Almost surely, 2^3678404 is an apocalyptic number.

It is an amenable number.

3678404 is a deficient number, since it is larger than the sum of its proper divisors (2772796).

3678404 is a wasteful number, since it uses less digits than its factorization.

3678404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3678404 is about 1917.9165779564. The cubic root of 3678404 is about 154.3665301018.

The spelling of 3678404 in words is "three million, six hundred seventy-eight thousand, four hundred four".