22816423 has 4 divisors (see below), whose sum is σ = 26075920. Its totient is φ = 19556928.

The previous prime is 22816393. The next prime is 22816441. The reversal of 22816423 is 32461822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32461822 = 2 ⋅16230911.

It is a cyclic number.

It is not a de Polignac number, because 22816423 - 2¹³ = 22808231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22816391 and 22816400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22816463) 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 in 3 ways as a sum of consecutive naturals, for example, 1629738 + ... + 1629751.

It is an arithmetic number, because the mean of its divisors is an integer number (6518980).

Almost surely, 2^22816423 is an apocalyptic number.

22816423 is a deficient number, since it is larger than the sum of its proper divisors (3259497).

22816423 is an equidigital number, since it uses as much as digits as its factorization.

22816423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259496.

The product of its digits is 4608, while the sum is 28.

The square root of 22816423 is about 4776.6539543911. The cubic root of 22816423 is about 283.6280548795.

The spelling of 22816423 in words is "twenty-two million, eight hundred sixteen thousand, four hundred twenty-three".