22203423 has 16 divisors (see below), whose sum is σ = 35884800. Its totient is φ = 13456440.

The previous prime is 22203421. The next prime is 22203431. The reversal of 22203423 is 32430222.

It is not a de Polignac number, because 22203423 - 2¹ = 22203421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22203396 and 22203405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203421) 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 15 ways as a sum of consecutive naturals, for example, 37083 + ... + 37676.

It is an arithmetic number, because the mean of its divisors is an integer number (2242800).

Almost surely, 2^22203423 is an apocalyptic number.

22203423 is a deficient number, since it is larger than the sum of its proper divisors (13681377).

22203423 is a wasteful number, since it uses less digits than its factorization.

22203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74779 (or 74773 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22203423 is about 4712.0508273999. The cubic root of 22203423 is about 281.0649200104.

Adding to 22203423 its reverse (32430222), we get a palindrome (54633645).

The spelling of 22203423 in words is "twenty-two million, two hundred three thousand, four hundred twenty-three".