1222423 has 8 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 1156440.

The previous prime is 1222411. The next prime is 1222433. The reversal of 1222423 is 3242221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222423 is a prime.

It is a Duffinian number.

1222423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1222397 and 1222406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1038 + ... + 1876.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^1222423 is an apocalyptic number.

1222423 is a deficient number, since it is larger than the sum of its proper divisors (67817).

1222423 is an equidigital number, since it uses as much as digits as its factorization.

1222423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917.

The product of its digits is 192, while the sum is 16.

The square root of 1222423 is about 1105.6323982228. The cubic root of 1222423 is about 106.9236652394.

Adding to 1222423 its reverse (3242221), we get a palindrome (4464644).

The spelling of 1222423 in words is "one million, two hundred twenty-two thousand, four hundred twenty-three".