1422208 has 32 divisors (see below), whose sum is σ = 2913120. Its totient is φ = 691200.

The previous prime is 1422199. The next prime is 1422221. The reversal of 1422208 is 8022241.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5113 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (91035).

2^1422208 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 1422208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456560).

1422208 is an abundant number, since it is smaller than the sum of its proper divisors (1490912).

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

1422208 is an equidigital number, since it uses as much as digits as its factorization.

1422208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1422208 is about 1192.5636251370. The cubic root of 1422208 is about 112.4573138467.

Adding to 1422208 its reverse (8022241), we get a palindrome (9444449).

It can be divided in two parts, 14 and 22208, that added together give a palindrome (22222).

The spelling of 1422208 in words is "one million, four hundred twenty-two thousand, two hundred eight".