18054330 has 64 divisors (see below), whose sum is σ = 49939200. Its totient is φ = 4091904.

The previous prime is 18054329. The next prime is 18054331. The reversal of 18054330 is 3345081.

It is an interprime number because it is at equal distance from previous prime (18054329) and next prime (18054331).

It is a self number, because there is not a number n which added to its sum of digits gives 18054330.

It is not an unprimeable number, because it can be changed into a prime (18054331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31002 + ... + 31578.

It is an arithmetic number, because the mean of its divisors is an integer number (780300).

Almost surely, 2^18054330 is an apocalyptic number.

18054330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18054330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24969600).

18054330 is an abundant number, since it is smaller than the sum of its proper divisors (31884870).

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

18054330 is a wasteful number, since it uses less digits than its factorization.

18054330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 18054330 is about 4249.0387148154. The cubic root of 18054330 is about 262.3375502814.

The spelling of 18054330 in words is "eighteen million, fifty-four thousand, three hundred thirty".