16423238 has 16 divisors (see below), whose sum is σ = 26653536. Its totient is φ = 7544640.

The previous prime is 16423237. The next prime is 16423243. The reversal of 16423238 is 83232461.

It is a self number, because there is not a number n which added to its sum of digits gives 16423238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16423237) 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 7 ways as a sum of consecutive naturals, for example, 4703 + ... + 7413.

It is an arithmetic number, because the mean of its divisors is an integer number (1665846).

Almost surely, 2^16423238 is an apocalyptic number.

16423238 is a deficient number, since it is larger than the sum of its proper divisors (10230298).

16423238 is a wasteful number, since it uses less digits than its factorization.

16423238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its digits is 6912, while the sum is 29.

The square root of 16423238 is about 4052.5594381822. The cubic root of 16423238 is about 254.1867620171.

Adding to 16423238 its reverse (83232461), we get a palindrome (99655699).

It can be divided in two parts, 16423 and 238, that added together give a palindrome (16661).

The spelling of 16423238 in words is "sixteen million, four hundred twenty-three thousand, two hundred thirty-eight".