18422828 has 12 divisors (see below), whose sum is σ = 32270280. Its totient is φ = 9202752.

The previous prime is 18422827. The next prime is 18422861. The reversal of 18422828 is 82822481.

It is not an unprimeable number, because it can be changed into a prime (18422827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6263 + ... + 8721.

It is an arithmetic number, because the mean of its divisors is an integer number (2689190).

Almost surely, 2^18422828 is an apocalyptic number.

It is an amenable number.

18422828 is a deficient number, since it is larger than the sum of its proper divisors (13847452).

18422828 is a wasteful number, since it uses less digits than its factorization.

18422828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336 (or 4334 counting only the distinct ones).

The product of its digits is 16384, while the sum is 35.

The square root of 18422828 is about 4292.1821955737. The cubic root of 18422828 is about 264.1103571373.

The spelling of 18422828 in words is "eighteen million, four hundred twenty-two thousand, eight hundred twenty-eight".