3930404 has 12 divisors (see below), whose sum is σ = 6893964. Its totient is φ = 1960704.

The previous prime is 3930391. The next prime is 3930439. The reversal of 3930404 is 4040393.

It can be written as a sum of positive squares in 2 ways, for example, as 1827904 + 2102500 = 1352^2 + 1450^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3930404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (574497).

Almost surely, 2^3930404 is an apocalyptic number.

It is an amenable number.

3930404 is a deficient number, since it is larger than the sum of its proper divisors (2963560).

3930404 is a wasteful number, since it uses less digits than its factorization.

3930404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254 (or 2252 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3930404 is about 1982.5246530624. The cubic root of 3930404 is about 157.8140738790.

Adding to 3930404 its reverse (4040393), we get a palindrome (7970797).

It can be divided in two parts, 3930 and 404, that added together give a palindrome (4334).

The spelling of 3930404 in words is "three million, nine hundred thirty thousand, four hundred four".