16042823 has 4 divisors (see below), whose sum is σ = 16069608. Its totient is φ = 16016040.

The previous prime is 16042811. The next prime is 16042847. The reversal of 16042823 is 32824061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16042823 - 2⁶ = 16042759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16042792 and 16042801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16042223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12473 + ... + 13698.

It is an arithmetic number, because the mean of its divisors is an integer number (4017402).

Almost surely, 2^16042823 is an apocalyptic number.

16042823 is a deficient number, since it is larger than the sum of its proper divisors (26785).

16042823 is an equidigital number, since it uses as much as digits as its factorization.

16042823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26784.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 16042823 is about 4005.3492981262. The cubic root of 16042823 is about 252.2088163793.

Adding to 16042823 its reverse (32824061), we get a palindrome (48866884).

The spelling of 16042823 in words is "sixteen million, forty-two thousand, eight hundred twenty-three".