18239124 has 24 divisors (see below), whose sum is σ = 42659008. Its totient is φ = 6065280.

The previous prime is 18239101. The next prime is 18239141. The reversal of 18239124 is 42193281.

It is a junction number, because it is equal to n+sod(n) for n = 18239091 and 18239100.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4284 + ... + 7404.

Almost surely, 2^18239124 is an apocalyptic number.

It is an amenable number.

18239124 is an abundant number, since it is smaller than the sum of its proper divisors (24419884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18239124 is a wasteful number, since it uses less digits than its factorization.

18239124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615 (or 3613 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 18239124 is about 4270.7287434348. The cubic root of 18239124 is about 263.2295604927.

The spelling of 18239124 in words is "eighteen million, two hundred thirty-nine thousand, one hundred twenty-four".