3831212 has 36 divisors (see below), whose sum is σ = 8513064. Its totient is φ = 1491840.

The previous prime is 3831199. The next prime is 3831221. The reversal of 3831212 is 2121383.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1268 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (236474).

Almost surely, 2^3831212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3831212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4256532).

3831212 is an abundant number, since it is smaller than the sum of its proper divisors (4681852).

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

3831212 is a wasteful number, since it uses less digits than its factorization.

3831212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1797 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 3831212 is about 1957.3482061197. The cubic root of 3831212 is about 156.4751565664.

Adding to 3831212 its reverse (2121383), we get a palindrome (5952595).

The spelling of 3831212 in words is "three million, eight hundred thirty-one thousand, two hundred twelve".