18668482 has 16 divisors (see below), whose sum is σ = 33886080. Its totient is φ = 7530048.

The previous prime is 18668477. The next prime is 18668483. The reversal of 18668482 is 28486681.

It is not an unprimeable number, because it can be changed into a prime (18668483) by changing a digit.

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, 38982 + ... + 39457.

It is an arithmetic number, because the mean of its divisors is an integer number (2117880).

Almost surely, 2^18668482 is an apocalyptic number.

18668482 is a deficient number, since it is larger than the sum of its proper divisors (15217598).

18668482 is a wasteful number, since it uses less digits than its factorization.

18668482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78465.

The product of its digits is 147456, while the sum is 43.

The square root of 18668482 is about 4320.7038778421. The cubic root of 18668482 is about 265.2790794324.

The spelling of 18668482 in words is "eighteen million, six hundred sixty-eight thousand, four hundred eighty-two".