1423306 has 4 divisors (see below), whose sum is σ = 2134962. Its totient is φ = 711652.

The previous prime is 1423297. The next prime is 1423307. The reversal of 1423306 is 6033241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6033241 = 19 ⋅317539.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 549081 = 935^2 + 741^2 .

It is not an unprimeable number, because it can be changed into a prime (1423307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355825 + ... + 355828.

2^1423306 is an apocalyptic number.

1423306 is a deficient number, since it is larger than the sum of its proper divisors (711656).

1423306 is an equidigital number, since it uses as much as digits as its factorization.

1423306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711655.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1423306 is about 1193.0238891154. The cubic root of 1423306 is about 112.4862468784.

Adding to 1423306 its reverse (6033241), we get a palindrome (7456547).

The spelling of 1423306 in words is "one million, four hundred twenty-three thousand, three hundred six".