18800828 has 12 divisors (see below), whose sum is σ = 33298440. Its totient is φ = 9286992.

The previous prime is 18800819. The next prime is 18800843. The reversal of 18800828 is 82800881.

It is a super-2 number, since 2×18800828² = 706942266971168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 27983 + ... + 28646.

It is an arithmetic number, because the mean of its divisors is an integer number (2774870).

Almost surely, 2^18800828 is an apocalyptic number.

It is an amenable number.

18800828 is a deficient number, since it is larger than the sum of its proper divisors (14497612).

18800828 is a wasteful number, since it uses less digits than its factorization.

18800828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56716 (or 56714 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 35.

The square root of 18800828 is about 4335.9921586645. The cubic root of 18800828 is about 265.9044826364.

The spelling of 18800828 in words is "eighteen million, eight hundred thousand, eight hundred twenty-eight".