18018802 has 32 divisors (see below), whose sum is σ = 29937600. Its totient is φ = 8100288.

The previous prime is 18018769. The next prime is 18018839. The reversal of 18018802 is 20881081.

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 15 ways as a sum of consecutive naturals, for example, 91368 + ... + 91564.

It is an arithmetic number, because the mean of its divisors is an integer number (935550).

Almost surely, 2^18018802 is an apocalyptic number.

18018802 is a deficient number, since it is larger than the sum of its proper divisors (11918798).

18018802 is a wasteful number, since it uses less digits than its factorization.

18018802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 18018802 is about 4244.8559457301. The cubic root of 18018802 is about 262.1653580001.

Adding to 18018802 its reverse (20881081), we get a palindrome (38899883).

The spelling of 18018802 in words is "eighteen million, eighteen thousand, eight hundred two".