23739438 has 16 divisors (see below), whose sum is σ = 47685456. Its totient is φ = 7878720.

The previous prime is 23739413. The next prime is 23739439. The reversal of 23739438 is 83493732.

It is a junction number, because it is equal to n+sod(n) for n = 23739396 and 23739405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23739439) 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, 7093 + ... + 9888.

It is an arithmetic number, because the mean of its divisors is an integer number (2980341).

Almost surely, 2^23739438 is an apocalyptic number.

23739438 is an abundant number, since it is smaller than the sum of its proper divisors (23946018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23739438 is a wasteful number, since it uses less digits than its factorization.

23739438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17219.

The product of its digits is 108864, while the sum is 39.

The square root of 23739438 is about 4872.3134135644. The cubic root of 23739438 is about 287.4022372075.

It can be divided in two parts, 2373 and 9438, that added together give a palindrome (11811).

The spelling of 23739438 in words is "twenty-three million, seven hundred thirty-nine thousand, four hundred thirty-eight".