28518098 has 24 divisors (see below), whose sum is σ = 49954572. Its totient is φ = 12174624.

The previous prime is 28518079. The next prime is 28518103. The reversal of 28518098 is 89081582.

It can be written as a sum of positive squares in 2 ways, for example, as 24078649 + 4439449 = 4907^2 + 2107^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38540 + ... + 39272.

Almost surely, 2^28518098 is an apocalyptic number.

28518098 is a deficient number, since it is larger than the sum of its proper divisors (21436474).

28518098 is a wasteful number, since it uses less digits than its factorization.

28518098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 28518098 is about 5340.2338900089. The cubic root of 28518098 is about 305.5203801173.

The spelling of 28518098 in words is "twenty-eight million, five hundred eighteen thousand, ninety-eight".