16448239 has 4 divisors (see below), whose sum is σ = 16892824. Its totient is φ = 16003656.

The previous prime is 16448233. The next prime is 16448269. The reversal of 16448239 is 93284461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93284461 = 293 ⋅318377.

It is a cyclic number.

It is not a de Polignac number, because 16448239 - 2¹⁵ = 16415471 is a prime.

It is a super-2 number, since 2×16448239² = 541089132402242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 444547 = 16448239 / (1 + 6 + 4 + 4 + 8 + 2 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16448198 and 16448207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16448233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222237 + ... + 222310.

It is an arithmetic number, because the mean of its divisors is an integer number (4223206).

Almost surely, 2^16448239 is an apocalyptic number.

16448239 is a deficient number, since it is larger than the sum of its proper divisors (444585).

16448239 is an equidigital number, since it uses as much as digits as its factorization.

16448239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444584.

The product of its digits is 41472, while the sum is 37.

The square root of 16448239 is about 4055.6428590299. The cubic root of 16448239 is about 254.3156789675.

The spelling of 16448239 in words is "sixteen million, four hundred forty-eight thousand, two hundred thirty-nine".