18000830 has 8 divisors (see below), whose sum is σ = 32401512. Its totient is φ = 7200328.

The previous prime is 18000821. The next prime is 18000869. The reversal of 18000830 is 3800081.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900032 + ... + 900051.

It is an arithmetic number, because the mean of its divisors is an integer number (4050189).

Almost surely, 2^18000830 is an apocalyptic number.

18000830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18000830 is a deficient number, since it is larger than the sum of its proper divisors (14400682).

18000830 is a wasteful number, since it uses less digits than its factorization.

18000830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800090.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 18000830 is about 4242.7385024298. The cubic root of 18000830 is about 262.0781675356.

The spelling of 18000830 in words is "eighteen million, eight hundred thirty", and thus it is an aban number.