1322228 has 6 divisors (see below), whose sum is σ = 2313906. Its totient is φ = 661112.

The previous prime is 1322227. The next prime is 1322257. The reversal of 1322228 is 8222231.

It can be written as a sum of positive squares in only one way, i.e., 1281424 + 40804 = 1132^2 + 202^2 .

It is a d-powerful number, because it can be written as 1 + 3¹² + 2 + 2⁸ + 2¹⁸ + 2¹⁹ + 8⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165275 + ... + 165282.

It is an arithmetic number, because the mean of its divisors is an integer number (385651).

2^1322228 is an apocalyptic number.

It is an amenable number.

1322228 is a deficient number, since it is larger than the sum of its proper divisors (991678).

1322228 is a wasteful number, since it uses less digits than its factorization.

1322228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330561 (or 330559 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 1322228 is about 1149.8817330491. The cubic root of 1322228 is about 109.7578142813.

Adding to 1322228 its reverse (8222231), we get a palindrome (9544459).

The spelling of 1322228 in words is "one million, three hundred twenty-two thousand, two hundred twenty-eight".