18952423 has 4 divisors (see below), whose sum is σ = 21659920. Its totient is φ = 16244928.

The previous prime is 18952403. The next prime is 18952471. The reversal of 18952423 is 32425981.

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

It is not a de Polignac number, because 18952423 - 2¹³ = 18944231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18952403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353738 + ... + 1353751.

It is an arithmetic number, because the mean of its divisors is an integer number (5414980).

Almost surely, 2^18952423 is an apocalyptic number.

18952423 is a deficient number, since it is larger than the sum of its proper divisors (2707497).

18952423 is an equidigital number, since it uses as much as digits as its factorization.

18952423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707496.

The product of its digits is 17280, while the sum is 34.

The square root of 18952423 is about 4353.4380666319. The cubic root of 18952423 is about 266.6172514338.

The spelling of 18952423 in words is "eighteen million, nine hundred fifty-two thousand, four hundred twenty-three".