3216204 has 36 divisors (see below), whose sum is σ = 8331960. Its totient is φ = 1045440.

The previous prime is 3216197. The next prime is 3216209. The reversal of 3216204 is 4026123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (3216209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387 + ... + 2565.

Almost surely, 2^3216204 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 3216204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4165980).

3216204 is an abundant number, since it is smaller than the sum of its proper divisors (5115756).

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

3216204 is a wasteful number, since it uses less digits than its factorization.

3216204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230 (or 2225 counting only the distinct ones).

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

The square root of 3216204 is about 1793.3778185313. The cubic root of 3216204 is about 147.6095748080.

The spelling of 3216204 in words is "three million, two hundred sixteen thousand, two hundred four".