18312082 has 8 divisors (see below), whose sum is σ = 27487116. Its totient is φ = 9149712.

The previous prime is 18312059. The next prime is 18312101. The reversal of 18312082 is 28021381.

It can be written as a sum of positive squares in 2 ways, for example, as 18071001 + 241081 = 4251^2 + 491^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2428 + ... + 6520.

Almost surely, 2^18312082 is an apocalyptic number.

18312082 is a deficient number, since it is larger than the sum of its proper divisors (9175034).

18312082 is a wasteful number, since it uses less digits than its factorization.

18312082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18312082 is about 4279.2618522357. The cubic root of 18312082 is about 263.5800735296.

The spelling of 18312082 in words is "eighteen million, three hundred twelve thousand, eighty-two".