18124616 has 16 divisors (see below), whose sum is σ = 34174140. Its totient is φ = 9011520.

The previous prime is 18124609. The next prime is 18124619. The reversal of 18124616 is 61642181.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 96100 = 4246^2 + 310^2 .

It is not an unprimeable number, because it can be changed into a prime (18124619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4811 + ... + 7706.

Almost surely, 2^18124616 is an apocalyptic number.

It is an amenable number.

18124616 is a deficient number, since it is larger than the sum of its proper divisors (16049524).

18124616 is a wasteful number, since it uses less digits than its factorization.

18124616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704 (or 12700 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 18124616 is about 4257.3014927299. The cubic root of 18124616 is about 262.6775385516.

Adding to 18124616 its reverse (61642181), we get a palindrome (79766797).

The spelling of 18124616 in words is "eighteen million, one hundred twenty-four thousand, six hundred sixteen".