3216224 has 24 divisors (see below), whose sum is σ = 6908328. Its totient is φ = 1461760.

The previous prime is 3216221. The next prime is 3216233. The reversal of 3216224 is 4226123.

It is a junction number, because it is equal to n+sod(n) for n = 3216196 and 3216205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217 + ... + 4920.

It is an arithmetic number, because the mean of its divisors is an integer number (287847).

Almost surely, 2^3216224 is an apocalyptic number.

It is an amenable number.

3216224 is an abundant number, since it is smaller than the sum of its proper divisors (3692104).

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

3216224 is a wasteful number, since it uses less digits than its factorization.

3216224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158 (or 9150 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 3216224 is about 1793.3833945925. The cubic root of 3216224 is about 147.6098807779.

The spelling of 3216224 in words is "three million, two hundred sixteen thousand, two hundred twenty-four".