22408123 has 4 divisors (see below), whose sum is σ = 22426408. Its totient is φ = 22389840.

The previous prime is 22408109. The next prime is 22408151. The reversal of 22408123 is 32180422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22408123 - 2¹⁷ = 22277051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22408094 and 22408103.

It is not an unprimeable number, because it can be changed into a prime (22408103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7161 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (5606602).

Almost surely, 2^22408123 is an apocalyptic number.

22408123 is a deficient number, since it is larger than the sum of its proper divisors (18285).

22408123 is a wasteful number, since it uses less digits than its factorization.

22408123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18284.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 22408123 is about 4733.7218971968. The cubic root of 22408123 is about 281.9260196929.

Adding to 22408123 its reverse (32180422), we get a palindrome (54588545).

The spelling of 22408123 in words is "twenty-two million, four hundred eight thousand, one hundred twenty-three".