18026828 has 6 divisors (see below), whose sum is σ = 31546956. Its totient is φ = 9013412.

The previous prime is 18026821. The next prime is 18026831. The reversal of 18026828 is 82862081.

It is not an unprimeable number, because it can be changed into a prime (18026821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2253350 + ... + 2253357.

It is an arithmetic number, because the mean of its divisors is an integer number (5257826).

Almost surely, 2^18026828 is an apocalyptic number.

It is an amenable number.

18026828 is a deficient number, since it is larger than the sum of its proper divisors (13520128).

18026828 is a wasteful number, since it uses less digits than its factorization.

18026828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506711 (or 4506709 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 18026828 is about 4245.8012200290. The cubic root of 18026828 is about 262.2042771030.

The spelling of 18026828 in words is "eighteen million, twenty-six thousand, eight hundred twenty-eight".