28486618 has 8 divisors (see below), whose sum is σ = 42854112. Its totient is φ = 14201916.

The previous prime is 28486589. The next prime is 28486631. The reversal of 28486618 is 81668482.

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

It is a super-2 number, since 2×28486618² = 1622974810155848, which contains 22 as substring.

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, 19830 + ... + 21217.

It is an arithmetic number, because the mean of its divisors is an integer number (5356764).

Almost surely, 2^28486618 is an apocalyptic number.

28486618 is a deficient number, since it is larger than the sum of its proper divisors (14367494).

28486618 is a wasteful number, since it uses less digits than its factorization.

28486618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41396.

The product of its digits is 147456, while the sum is 43.

The square root of 28486618 is about 5337.2856397236. The cubic root of 28486618 is about 305.4079214412.

The spelling of 28486618 in words is "twenty-eight million, four hundred eighty-six thousand, six hundred eighteen".