18454089 has 8 divisors (see below), whose sum is σ = 24671232. Its totient is φ = 12269840.

The previous prime is 18454087. The next prime is 18454151. The reversal of 18454089 is 98045481.

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 18454089 - 2¹ = 18454087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18454087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6882 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (3083904).

Almost surely, 2^18454089 is an apocalyptic number.

It is an amenable number.

18454089 is a deficient number, since it is larger than the sum of its proper divisors (6217143).

18454089 is a wasteful number, since it uses less digits than its factorization.

18454089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16447.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 18454089 is about 4295.8222728600. The cubic root of 18454089 is about 264.2596590126.

The spelling of 18454089 in words is "eighteen million, four hundred fifty-four thousand, eighty-nine".