3821224 has 32 divisors (see below), whose sum is σ = 7892640. Its totient is φ = 1720000.

The previous prime is 3821221. The next prime is 3821231. The reversal of 3821224 is 4221283.

3821224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3821195 and 3821204.

It is not an unprimeable number, because it can be changed into a prime (3821221) 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 7 ways as a sum of consecutive naturals, for example, 15099 + ... + 15349.

It is an arithmetic number, because the mean of its divisors is an integer number (246645).

Almost surely, 2^3821224 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 3821224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3946320).

3821224 is an abundant number, since it is smaller than the sum of its proper divisors (4071416).

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

3821224 is a wasteful number, since it uses less digits than its factorization.

3821224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 437 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 3821224 is about 1954.7951299305. The cubic root of 3821224 is about 156.3390609065.

The spelling of 3821224 in words is "three million, eight hundred twenty-one thousand, two hundred twenty-four".