23187338 has 8 divisors (see below), whose sum is σ = 34839588. Its totient is φ = 11574144.

The previous prime is 23187331. The next prime is 23187343. The reversal of 23187338 is 83378132.

It can be written as a sum of positive squares in 2 ways, for example, as 23107249 + 80089 = 4807^2 + 283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23187298 and 23187307.

It is not an unprimeable number, because it can be changed into a prime (23187331) 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, 8231 + ... + 10682.

Almost surely, 2^23187338 is an apocalyptic number.

23187338 is a deficient number, since it is larger than the sum of its proper divisors (11652250).

23187338 is a wasteful number, since it uses less digits than its factorization.

23187338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19528.

The product of its digits is 24192, while the sum is 35.

The square root of 23187338 is about 4815.3232497933. The cubic root of 23187338 is about 285.1567333243.

The spelling of 23187338 in words is "twenty-three million, one hundred eighty-seven thousand, three hundred thirty-eight".