18080349 has 8 divisors (see below), whose sum is σ = 27551040. Its totient is φ = 10331616.

The previous prime is 18080329. The next prime is 18080351. The reversal of 18080349 is 94308081.

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

It is not a de Polignac number, because 18080349 - 2¹³ = 18072157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080329) 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, 430464 + ... + 430505.

It is an arithmetic number, because the mean of its divisors is an integer number (3443880).

Almost surely, 2^18080349 is an apocalyptic number.

It is an amenable number.

18080349 is a deficient number, since it is larger than the sum of its proper divisors (9470691).

18080349 is an equidigital number, since it uses as much as digits as its factorization.

18080349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860979.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 18080349 is about 4252.0993638437. The cubic root of 18080349 is about 262.4635123888.

The spelling of 18080349 in words is "eighteen million, eighty thousand, three hundred forty-nine".