18080830 has 8 divisors (see below), whose sum is σ = 32545512. Its totient is φ = 7232328.

The previous prime is 18080807. The next prime is 18080831. The reversal of 18080830 is 3808081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080831) 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 3 ways as a sum of consecutive naturals, for example, 904032 + ... + 904051.

It is an arithmetic number, because the mean of its divisors is an integer number (4068189).

Almost surely, 2^18080830 is an apocalyptic number.

18080830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18080830 is a deficient number, since it is larger than the sum of its proper divisors (14464682).

18080830 is a wasteful number, since it uses less digits than its factorization.

18080830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808090.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18080830 is about 4252.1559237638. The cubic root of 18080830 is about 262.4658398481.

The spelling of 18080830 in words is "eighteen million, eighty thousand, eight hundred thirty".