18454498 has 8 divisors (see below), whose sum is σ = 28636380. Its totient is φ = 8909040.

The previous prime is 18454483. The next prime is 18454507. The reversal of 18454498 is 89445481.

It can be written as a sum of positive squares in 2 ways, for example, as 18429849 + 24649 = 4293^2 + 157^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 159033 + ... + 159148.

Almost surely, 2^18454498 is an apocalyptic number.

18454498 is a deficient number, since it is larger than the sum of its proper divisors (10181882).

18454498 is a wasteful number, since it uses less digits than its factorization.

18454498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318212.

The product of its digits is 184320, while the sum is 43.

The square root of 18454498 is about 4295.8698769865. The cubic root of 18454498 is about 264.2616112702.

The spelling of 18454498 in words is "eighteen million, four hundred fifty-four thousand, four hundred ninety-eight".