3521824 has 24 divisors (see below), whose sum is σ = 6987708. Its totient is φ = 1747200.

The previous prime is 3521803. The next prime is 3521831. The reversal of 3521824 is 4281253.

3521824 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 3489424 + 32400 = 1868^2 + 180^2 .

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 3 ways as a sum of consecutive naturals, for example, 4674 + ... + 5374.

Almost surely, 2^3521824 is an apocalyptic number.

It is an amenable number.

3521824 is a deficient number, since it is larger than the sum of its proper divisors (3465884).

3521824 is a wasteful number, since it uses less digits than its factorization.

3521824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 860 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 3521824 is about 1876.6523386072. The cubic root of 3521824 is about 152.1443688376.

The spelling of 3521824 in words is "three million, five hundred twenty-one thousand, eight hundred twenty-four".