3204216 has 48 divisors (see below), whose sum is σ = 8760960. Its totient is φ = 1057920.

The previous prime is 3204209. The next prime is 3204247. The reversal of 3204216 is 6124023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13636 + ... + 13868.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

Almost surely, 2^3204216 is an apocalyptic number.

3204216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3204216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4380480).

3204216 is an abundant number, since it is smaller than the sum of its proper divisors (5556744).

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

3204216 is a wasteful number, since it uses less digits than its factorization.

3204216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3204216 is about 1790.0324019414. The cubic root of 3204216 is about 147.4259476985.

Adding to 3204216 its reverse (6124023), we get a palindrome (9328239).

The spelling of 3204216 in words is "three million, two hundred four thousand, two hundred sixteen".