18488423 has 8 divisors (see below), whose sum is σ = 18817920. Its totient is φ = 18162040.

The previous prime is 18488413. The next prime is 18488441. The reversal of 18488423 is 32488481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18488423 - 2¹⁸ = 18226279 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 (18488413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13358 + ... + 14676.

It is an arithmetic number, because the mean of its divisors is an integer number (2352240).

Almost surely, 2^18488423 is an apocalyptic number.

18488423 is a deficient number, since it is larger than the sum of its proper divisors (329497).

18488423 is a wasteful number, since it uses less digits than its factorization.

18488423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557.

The product of its digits is 49152, while the sum is 38.

The square root of 18488423 is about 4299.8166239969. The cubic root of 18488423 is about 264.4234433115.

The spelling of 18488423 in words is "eighteen million, four hundred eighty-eight thousand, four hundred twenty-three".