1322328 has 64 divisors (see below), whose sum is σ = 4008960. Its totient is φ = 354816.

The previous prime is 1322327. The next prime is 1322329. The reversal of 1322328 is 8232231.

It is an interprime number because it is at equal distance from previous prime (1322327) and next prime (1322329).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322323) 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, 2625 + ... + 3087.

It is an arithmetic number, because the mean of its divisors is an integer number (62640).

2^1322328 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 1322328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004480).

1322328 is an abundant number, since it is smaller than the sum of its proper divisors (2686632).

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

1322328 is a wasteful number, since it uses less digits than its factorization.

1322328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 492 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1322328 is about 1149.9252149597. The cubic root of 1322328 is about 109.7605812032.

Adding to 1322328 its reverse (8232231), we get a palindrome (9554559).

Subtracting 1322328 from its reverse (8232231), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1322328 in words is "one million, three hundred twenty-two thousand, three hundred twenty-eight".