18518124 has 48 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 5898816.

The previous prime is 18518113. The next prime is 18518161. The reversal of 18518124 is 42181581.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18518091 and 18518100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43987 + ... + 44405.

It is an arithmetic number, because the mean of its divisors is an integer number (940800).

Almost surely, 2^18518124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18518124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22579200).

18518124 is an abundant number, since it is smaller than the sum of its proper divisors (26640276).

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

18518124 is a wasteful number, since it uses less digits than its factorization.

18518124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 580 counting only the distinct ones).

The product of its digits is 2560, while the sum is 30.

The square root of 18518124 is about 4303.2689899657. The cubic root of 18518124 is about 264.5649632040.

The spelling of 18518124 in words is "eighteen million, five hundred eighteen thousand, one hundred twenty-four".