28018108 has 12 divisors (see below), whose sum is σ = 51916032. Its totient is φ = 13184960.

The previous prime is 28018099. The next prime is 28018121. The reversal of 28018108 is 80181082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205948 + ... + 206083.

It is an arithmetic number, because the mean of its divisors is an integer number (4326336).

Almost surely, 2^28018108 is an apocalyptic number.

It is an amenable number.

28018108 is a deficient number, since it is larger than the sum of its proper divisors (23897924).

28018108 is a wasteful number, since it uses less digits than its factorization.

28018108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412052 (or 412050 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 28018108 is about 5293.2133907486. The cubic root of 28018108 is about 303.7243432636.

The spelling of 28018108 in words is "twenty-eight million, eighteen thousand, one hundred eight".