18364198 has 8 divisors (see below), whose sum is σ = 27603000. Its totient is φ = 9163200.

The previous prime is 18364117. The next prime is 18364201. The reversal of 18364198 is 89146381.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18364198.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8203 + ... + 10198.

It is an arithmetic number, because the mean of its divisors is an integer number (3450375).

Almost surely, 2^18364198 is an apocalyptic number.

18364198 is a deficient number, since it is larger than the sum of its proper divisors (9238802).

18364198 is a wasteful number, since it uses less digits than its factorization.

18364198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18902.

The product of its digits is 41472, while the sum is 40.

The square root of 18364198 is about 4285.3468937765. The cubic root of 18364198 is about 263.8298854323.

The spelling of 18364198 in words is "eighteen million, three hundred sixty-four thousand, one hundred ninety-eight".