28518146 has 8 divisors (see below), whose sum is σ = 45293580. Its totient is φ = 13420288.

The previous prime is 28518121. The next prime is 28518167. The reversal of 28518146 is 64181582.

It can be written as a sum of positive squares in 2 ways, for example, as 28504921 + 13225 = 5339^2 + 115^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419351 + ... + 419418.

Almost surely, 2^28518146 is an apocalyptic number.

28518146 is a deficient number, since it is larger than the sum of its proper divisors (16775434).

28518146 is a wasteful number, since it uses less digits than its factorization.

28518146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838788.

The product of its digits is 15360, while the sum is 35.

The square root of 28518146 is about 5340.2383841922. The cubic root of 28518146 is about 305.5205515286.

The spelling of 28518146 in words is "twenty-eight million, five hundred eighteen thousand, one hundred forty-six".