3222156 has 48 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 908160.

The previous prime is 3222151. The next prime is 3222169. The reversal of 3222156 is 6512223.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (3222151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7261 + ... + 7691.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 2^3222156 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 3222156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354560).

3222156 is an abundant number, since it is smaller than the sum of its proper divisors (5486964).

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

3222156 is a wasteful number, since it uses less digits than its factorization.

3222156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 3222156 is about 1795.0364898798. The cubic root of 3222156 is about 147.7005755421.

Adding to 3222156 its reverse (6512223), we get a palindrome (9734379).

The spelling of 3222156 in words is "three million, two hundred twenty-two thousand, one hundred fifty-six".