18230455 has 8 divisors (see below), whose sum is σ = 22468032. Its totient is φ = 14190048.

The previous prime is 18230447. The next prime is 18230479. The reversal of 18230455 is 55403281.

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

It is a cyclic number.

It is not a de Polignac number, because 18230455 - 2³ = 18230447 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 49087 + ... + 49456.

It is an arithmetic number, because the mean of its divisors is an integer number (2808504).

Almost surely, 2^18230455 is an apocalyptic number.

18230455 is a deficient number, since it is larger than the sum of its proper divisors (4237577).

18230455 is an equidigital number, since it uses as much as digits as its factorization.

18230455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98585.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 18230455 is about 4269.7136906355. The cubic root of 18230455 is about 263.1878498147.

The spelling of 18230455 in words is "eighteen million, two hundred thirty thousand, four hundred fifty-five".