18118324 has 24 divisors (see below), whose sum is σ = 38144960. Its totient is φ = 7356096.

The previous prime is 18118297. The next prime is 18118327. The reversal of 18118324 is 42381181.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 18118292 and 18118301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18118327) 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, 16497 + ... + 17560.

Almost surely, 2^18118324 is an apocalyptic number.

18118324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18118324 is an abundant number, since it is smaller than the sum of its proper divisors (20026636).

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

18118324 is a wasteful number, since it uses less digits than its factorization.

18118324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34087 (or 34085 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 18118324 is about 4256.5624628331. The cubic root of 18118324 is about 262.6471386732.

The spelling of 18118324 in words is "eighteen million, one hundred eighteen thousand, three hundred twenty-four".