18079305 has 8 divisors (see below), whose sum is σ = 28926912. Its totient is φ = 9642288.

The previous prime is 18079301. The next prime is 18079343. The reversal of 18079305 is 50397081.

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

It is not a de Polignac number, because 18079305 - 2² = 18079301 is a prime.

It is a super-2 number, since 2×18079305² = 653722538566050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18079301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 602629 + ... + 602658.

It is an arithmetic number, because the mean of its divisors is an integer number (3615864).

Almost surely, 2^18079305 is an apocalyptic number.

18079305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18079305 is a deficient number, since it is larger than the sum of its proper divisors (10847607).

18079305 is a wasteful number, since it uses less digits than its factorization.

18079305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205295.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 18079305 is about 4251.9765991830. The cubic root of 18079305 is about 262.4584605471.

The spelling of 18079305 in words is "eighteen million, seventy-nine thousand, three hundred five".