28499118 has 8 divisors (see below), whose sum is σ = 56998248. Its totient is φ = 9499704.

The previous prime is 28499101. The next prime is 28499131. The reversal of 28499118 is 81199482.

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

28499118 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28499118.

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, 2374921 + ... + 2374932.

It is an arithmetic number, because the mean of its divisors is an integer number (7124781).

Almost surely, 2^28499118 is an apocalyptic number.

28499118 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.

28499118 is a wasteful number, since it uses less digits than its factorization.

28499118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749858.

The product of its digits is 41472, while the sum is 42.

The square root of 28499118 is about 5338.4565185079. The cubic root of 28499118 is about 305.4525861649.

The spelling of 28499118 in words is "twenty-eight million, four hundred ninety-nine thousand, one hundred eighteen".