3990416 has 20 divisors (see below), whose sum is σ = 7762524. Its totient is φ = 1987200.

The previous prime is 3990383. The next prime is 3990419. The reversal of 3990416 is 6140993.

3990416 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 1430416 + 2560000 = 1196^2 + 1600^2 .

It is not an unprimeable number, because it can be changed into a prime (3990419) 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, 7106 + ... + 7646.

Almost surely, 2^3990416 is an apocalyptic number.

It is an amenable number.

3990416 is a deficient number, since it is larger than the sum of its proper divisors (3772108).

3990416 is a wasteful number, since it uses less digits than its factorization.

3990416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 3990416 is about 1997.6025630740. The cubic root of 3990416 is about 158.6132233758.

The spelling of 3990416 in words is "three million, nine hundred ninety thousand, four hundred sixteen".