1222326 has 48 divisors (see below), whose sum is σ = 3088800. Its totient is φ = 342144.

The previous prime is 1222307. The next prime is 1222373. The reversal of 1222326 is 6232221.

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

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1222299 and 1222308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11160 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (64350).

2^1222326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544400).

1222326 is an abundant number, since it is smaller than the sum of its proper divisors (1866474).

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

1222326 is a wasteful number, since it uses less digits than its factorization.

1222326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 210 counting only the distinct ones).

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

The square root of 1222326 is about 1105.5885310548. The cubic root of 1222326 is about 106.9208370123.

Adding to 1222326 its reverse (6232221), we get a palindrome (7454547).

The spelling of 1222326 in words is "one million, two hundred twenty-two thousand, three hundred twenty-six".