18008460 has 48 divisors (see below), whose sum is σ = 56028000. Its totient is φ = 4802112.

The previous prime is 18008413. The next prime is 18008467. The reversal of 18008460 is 6480081.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (18008467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16135 + ... + 17214.

It is an arithmetic number, because the mean of its divisors is an integer number (1167250).

Almost surely, 2^18008460 is an apocalyptic number.

18008460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18008460 is an abundant number, since it is smaller than the sum of its proper divisors (38019540).

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

18008460 is a wasteful number, since it uses less digits than its factorization.

18008460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33367 (or 33359 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18008460 is about 4243.6375905584. The cubic root of 18008460 is about 262.1151912719.

The spelling of 18008460 in words is "eighteen million, eight thousand, four hundred sixty".