18398082 has 8 divisors (see below), whose sum is σ = 36796176. Its totient is φ = 6132692.

The previous prime is 18398071. The next prime is 18398101. The reversal of 18398082 is 28089381.

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

18398082 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 18398082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533168 + ... + 1533179.

It is an arithmetic number, because the mean of its divisors is an integer number (4599522).

Almost surely, 2^18398082 is an apocalyptic number.

18398082 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.

18398082 is a wasteful number, since it uses less digits than its factorization.

18398082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066352.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 18398082 is about 4289.2985440512. The cubic root of 18398082 is about 263.9920509544.

The spelling of 18398082 in words is "eighteen million, three hundred ninety-eight thousand, eighty-two".