3856224 has 24 divisors (see below), whose sum is σ = 10122840. Its totient is φ = 1285376.

The previous prime is 3856213. The next prime is 3856231. The reversal of 3856224 is 4226583.

It is a tau number, because it is divible by the number of its divisors (24).

It is a d-powerful number, because it can be written as 3⁵ + 8² + 5⁷ + 6⁸ + 2²⁰ + 2²⁰ + 4⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 3856191 and 3856200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19989 + ... + 20180.

It is an arithmetic number, because the mean of its divisors is an integer number (421785).

Almost surely, 2^3856224 is an apocalyptic number.

It is an amenable number.

3856224 is an abundant number, since it is smaller than the sum of its proper divisors (6266616).

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

3856224 is a wasteful number, since it uses less digits than its factorization.

3856224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40182 (or 40174 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 3856224 is about 1963.7270686121. The cubic root of 3856224 is about 156.8149333271.

The spelling of 3856224 in words is "three million, eight hundred fifty-six thousand, two hundred twenty-four".