18260118 has 12 divisors (see below), whose sum is σ = 39563628. Its totient is φ = 6086700.

The previous prime is 18260089. The next prime is 18260119. The reversal of 18260118 is 81106281.

It is a junction number, because it is equal to n+sod(n) for n = 18260091 and 18260100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18260119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 507208 + ... + 507243.

It is an arithmetic number, because the mean of its divisors is an integer number (3296969).

Almost surely, 2^18260118 is an apocalyptic number.

18260118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18260118 is an abundant number, since it is smaller than the sum of its proper divisors (21303510).

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

18260118 is a wasteful number, since it uses less digits than its factorization.

18260118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014459 (or 1014456 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 18260118 is about 4273.1859308951. The cubic root of 18260118 is about 263.3305178712.

Adding to 18260118 its reverse (81106281), we get a palindrome (99366399).

The spelling of 18260118 in words is "eighteen million, two hundred sixty thousand, one hundred eighteen".