3992224 has 24 divisors (see below), whose sum is σ = 7972020. Its totient is φ = 1967616.

The previous prime is 3992221. The next prime is 3992231. The reversal of 3992224 is 4222993.

3992224 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 3920400 + 71824 = 1980^2 + 268^2 .

It is not an unprimeable number, because it can be changed into a prime (3992221) 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, 1482 + ... + 3190.

Almost surely, 2^3992224 is an apocalyptic number.

It is an amenable number.

3992224 is a deficient number, since it is larger than the sum of its proper divisors (3979796).

3992224 is a wasteful number, since it uses less digits than its factorization.

3992224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792 (or 1784 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 3992224 is about 1998.0550542966. The cubic root of 3992224 is about 158.6371748810.

Adding to 3992224 its product of digits (7776), we get a square (4000000 = 2000²).

The spelling of 3992224 in words is "three million, nine hundred ninety-two thousand, two hundred twenty-four".