18080810 has 16 divisors (see below), whose sum is σ = 35504352. Its totient is φ = 6574800.

The previous prime is 18080807. The next prime is 18080831. The reversal of 18080810 is 1808081.

It is a super-2 number, since 2×18080810² = 653831380512200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18080810.

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 7 ways as a sum of consecutive naturals, for example, 82076 + ... + 82295.

It is an arithmetic number, because the mean of its divisors is an integer number (2219022).

Almost surely, 2^18080810 is an apocalyptic number.

18080810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18080810 is a deficient number, since it is larger than the sum of its proper divisors (17423542).

18080810 is a wasteful number, since it uses less digits than its factorization.

18080810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164389.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 18080810 is about 4252.1535720150. The cubic root of 18080810 is about 262.4657430730.

Adding to 18080810 its reverse (1808081), we get a palindrome (19888891).

The spelling of 18080810 in words is "eighteen million, eighty thousand, eight hundred ten".