18284334 has 8 divisors (see below), whose sum is σ = 36568680. Its totient is φ = 6094776.

The previous prime is 18284309. The next prime is 18284339. The reversal of 18284334 is 43348281.

It is a sphenic number, since it is the product of 3 distinct primes.

18284334 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18284295 and 18284304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18284339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523689 + ... + 1523700.

It is an arithmetic number, because the mean of its divisors is an integer number (4571085).

Almost surely, 2^18284334 is an apocalyptic number.

18284334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18284334 is a wasteful number, since it uses less digits than its factorization.

18284334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047394.

The product of its digits is 18432, while the sum is 33.

The square root of 18284334 is about 4276.0184751706. The cubic root of 18284334 is about 263.4468733622.

The spelling of 18284334 in words is "eighteen million, two hundred eighty-four thousand, three hundred thirty-four".