18068423 has 4 divisors (see below), whose sum is σ = 18092928. Its totient is φ = 18043920.

The previous prime is 18068419. The next prime is 18068441. The reversal of 18068423 is 32486081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32486081 = 3557 ⋅9133.

It is a cyclic number.

It is not a de Polignac number, because 18068423 - 2² = 18068419 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 18068423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068473) 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, 11111 + ... + 12632.

It is an arithmetic number, because the mean of its divisors is an integer number (4523232).

Almost surely, 2^18068423 is an apocalyptic number.

18068423 is a deficient number, since it is larger than the sum of its proper divisors (24505).

18068423 is an equidigital number, since it uses as much as digits as its factorization.

18068423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24504.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 18068423 is about 4250.6967664137. The cubic root of 18068423 is about 262.4057917418.

The spelling of 18068423 in words is "eighteen million, sixty-eight thousand, four hundred twenty-three".