3820216 has 32 divisors (see below), whose sum is σ = 7736400. Its totient is φ = 1762560.

The previous prime is 3820181. The next prime is 3820237. The reversal of 3820216 is 6120283.

3820216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5926 + ... + 6538.

Almost surely, 2^3820216 is an apocalyptic number.

It is an amenable number.

3820216 is an abundant number, since it is smaller than the sum of its proper divisors (3916184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3820216 is a wasteful number, since it uses less digits than its factorization.

3820216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3820216 is about 1954.5372853952. The cubic root of 3820216 is about 156.3253128132.

Adding to 3820216 its reverse (6120283), we get a palindrome (9940499).

The spelling of 3820216 in words is "three million, eight hundred twenty thousand, two hundred sixteen".