3504404 has 12 divisors (see below), whose sum is σ = 6150228. Its totient is φ = 1747200.

The previous prime is 3504377. The next prime is 3504407. The reversal of 3504404 is 4044053.

It is a happy number.

3504404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 448900 + 3055504 = 670^2 + 1748^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 644 + ... + 2724.

It is an arithmetic number, because the mean of its divisors is an integer number (512519).

Almost surely, 2^3504404 is an apocalyptic number.

It is an amenable number.

3504404 is a deficient number, since it is larger than the sum of its proper divisors (2645824).

3504404 is a wasteful number, since it uses less digits than its factorization.

3504404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3504404 is about 1872.0053418727. The cubic root of 3504404 is about 151.8931035113.

Subtracting from 3504404 its sum of digits (20), we obtain a square (3504384 = 1872²).

Adding to 3504404 its reverse (4044053), we get a palindrome (7548457).

The spelling of 3504404 in words is "three million, five hundred four thousand, four hundred four".