18214828 has 24 divisors (see below), whose sum is σ = 32749920. Its totient is φ = 8860800.

The previous prime is 18214811. The next prime is 18214849. The reversal of 18214828 is 82841281.

It is a junction number, because it is equal to n+sod(n) for n = 18214793 and 18214802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31728 + ... + 32296.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580).

Almost surely, 2^18214828 is an apocalyptic number.

It is an amenable number.

18214828 is a deficient number, since it is larger than the sum of its proper divisors (14535092).

18214828 is a wasteful number, since it uses less digits than its factorization.

18214828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 775 counting only the distinct ones).

The product of its digits is 8192, while the sum is 34.

The square root of 18214828 is about 4267.8833161182. The cubic root of 18214828 is about 263.1126274783.

The spelling of 18214828 in words is "eighteen million, two hundred fourteen thousand, eight hundred twenty-eight".