18752423 has 4 divisors (see below), whose sum is σ = 18889440. Its totient is φ = 18615408.

The previous prime is 18752417. The next prime is 18752431. The reversal of 18752423 is 32425781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32425781 = 139 ⋅233279.

It is a cyclic number.

It is not a de Polignac number, because 18752423 - 2⁶ = 18752359 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 18752423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18752413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68303 + ... + 68576.

It is an arithmetic number, because the mean of its divisors is an integer number (4722360).

Almost surely, 2^18752423 is an apocalyptic number.

18752423 is a deficient number, since it is larger than the sum of its proper divisors (137017).

18752423 is a wasteful number, since it uses less digits than its factorization.

18752423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137016.

The product of its digits is 13440, while the sum is 32.

The square root of 18752423 is about 4330.4067938243. The cubic root of 18752423 is about 265.6760854548.

The spelling of 18752423 in words is "eighteen million, seven hundred fifty-two thousand, four hundred twenty-three".