16239243 has 8 divisors (see below), whose sum is σ = 22792000. Its totient is φ = 10256328.

The previous prime is 16239241. The next prime is 16239269. The reversal of 16239243 is 34293261.

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

It is not a de Polignac number, because 16239243 - 2¹ = 16239241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16239243.

It is not an unprimeable number, because it can be changed into a prime (16239241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142393 + ... + 142506.

It is an arithmetic number, because the mean of its divisors is an integer number (2849000).

Almost surely, 2^16239243 is an apocalyptic number.

16239243 is a deficient number, since it is larger than the sum of its proper divisors (6552757).

16239243 is a wasteful number, since it uses less digits than its factorization.

16239243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284921.

The product of its digits is 7776, while the sum is 30.

The square root of 16239243 is about 4029.7944116295. The cubic root of 16239243 is about 253.2339485887.

The spelling of 16239243 in words is "sixteen million, two hundred thirty-nine thousand, two hundred forty-three".