18274230 has 48 divisors (see below), whose sum is σ = 51171120. Its totient is φ = 4497984.

The previous prime is 18274229. The next prime is 18274231. The reversal of 18274230 is 3247281.

It is an interprime number because it is at equal distance from previous prime (18274229) and next prime (18274231).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18274194 and 18274203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18274231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6640 + ... + 8979.

It is an arithmetic number, because the mean of its divisors is an integer number (1066065).

Almost surely, 2^18274230 is an apocalyptic number.

18274230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18274230 is an abundant number, since it is smaller than the sum of its proper divisors (32896890).

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

18274230 is a wasteful number, since it uses less digits than its factorization.

18274230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645 (or 15642 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 18274230 is about 4274.8368389916. The cubic root of 18274230 is about 263.3983371366.

The spelling of 18274230 in words is "eighteen million, two hundred seventy-four thousand, two hundred thirty".