3820224 has 56 divisors (see below), whose sum is σ = 10259568. Its totient is φ = 1254400.

The previous prime is 3820181. The next prime is 3820237. The reversal of 3820224 is 4220283.

It is a super-2 number, since 2×3820224² = 29188222820352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3820224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19294 + ... + 19490.

Almost surely, 2^3820224 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 3820224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5129784).

3820224 is an abundant number, since it is smaller than the sum of its proper divisors (6439344).

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

3820224 is a wasteful number, since it uses less digits than its factorization.

3820224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3820224 is about 1954.5393319143. The cubic root of 3820224 is about 156.3254219346.

It can be divided in two parts, 38202 and 24, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 3820224 in words is "three million, eight hundred twenty thousand, two hundred twenty-four".