18366466 has 8 divisors (see below), whose sum is σ = 28747584. Its totient is φ = 8783940.

The previous prime is 18366457. The next prime is 18366479. The reversal of 18366466 is 66466381.

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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199590 + ... + 199681.

It is an arithmetic number, because the mean of its divisors is an integer number (3593448).

Almost surely, 2^18366466 is an apocalyptic number.

18366466 is a deficient number, since it is larger than the sum of its proper divisors (10381118).

18366466 is a wasteful number, since it uses less digits than its factorization.

18366466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399296.

The product of its digits is 124416, while the sum is 40.

The square root of 18366466 is about 4285.6115082914. The cubic root of 18366466 is about 263.8407460853.

The spelling of 18366466 in words is "eighteen million, three hundred sixty-six thousand, four hundred sixty-six".