18080455 has 8 divisors (see below), whose sum is σ = 21721104. Its totient is φ = 14448000.

The previous prime is 18080453. The next prime is 18080459. The reversal of 18080455 is 55408081.

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

It is not a de Polignac number, because 18080455 - 2¹ = 18080453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080453) 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, 5055 + ... + 7855.

It is an arithmetic number, because the mean of its divisors is an integer number (2715138).

Almost surely, 2^18080455 is an apocalyptic number.

18080455 is a deficient number, since it is larger than the sum of its proper divisors (3640649).

18080455 is a wasteful number, since it uses less digits than its factorization.

18080455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 18080455 is about 4252.1118282566. Note that the first 3 decimals coincide. The cubic root of 18080455 is about 262.4640253043.

The spelling of 18080455 in words is "eighteen million, eighty thousand, four hundred fifty-five".