3944216 has 8 divisors (see below), whose sum is σ = 7395420. Its totient is φ = 1972104.

The previous prime is 3944189. The next prime is 3944219. The reversal of 3944216 is 6124493.

3944216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944219) 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 as a sum of consecutive naturals, namely, 246506 + ... + 246521.

Almost surely, 2^3944216 is an apocalyptic number.

It is an amenable number.

3944216 is a deficient number, since it is larger than the sum of its proper divisors (3451204).

3944216 is a wasteful number, since it uses less digits than its factorization.

3944216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493033 (or 493029 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 3944216 is about 1986.0050352403. The cubic root of 3944216 is about 157.9987181437.

The spelling of 3944216 in words is "three million, nine hundred forty-four thousand, two hundred sixteen".