18122828 has 6 divisors (see below), whose sum is σ = 31714956. Its totient is φ = 9061412.

The previous prime is 18122813. The next prime is 18122843. The reversal of 18122828 is 82822181.

It is an interprime number because it is at equal distance from previous prime (18122813) and next prime (18122843).

It is a junction number, because it is equal to n+sod(n) for n = 18122794 and 18122803.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2265350 + ... + 2265357.

It is an arithmetic number, because the mean of its divisors is an integer number (5285826).

Almost surely, 2^18122828 is an apocalyptic number.

It is an amenable number.

18122828 is a deficient number, since it is larger than the sum of its proper divisors (13592128).

18122828 is a wasteful number, since it uses less digits than its factorization.

18122828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530711 (or 4530709 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The square root of 18122828 is about 4257.0914953757. The cubic root of 18122828 is about 262.6689005224.

The spelling of 18122828 in words is "eighteen million, one hundred twenty-two thousand, eight hundred twenty-eight".