28103118 has 8 divisors (see below), whose sum is σ = 56206248. Its totient is φ = 9367704.

The previous prime is 28103111. The next prime is 28103177. The reversal of 28103118 is 81130182.

It is a sphenic number, since it is the product of 3 distinct primes.

28103118 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28103111) 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, 2341921 + ... + 2341932.

It is an arithmetic number, because the mean of its divisors is an integer number (7025781).

Almost surely, 2^28103118 is an apocalyptic number.

28103118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28103118 is a wasteful number, since it uses less digits than its factorization.

28103118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683858.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 28103118 is about 5301.2374027202. The cubic root of 28103118 is about 304.0312107268.

The spelling of 28103118 in words is "twenty-eight million, one hundred three thousand, one hundred eighteen".