28814618 has 16 divisors (see below), whose sum is σ = 50023680. Its totient is φ = 12192336.

The previous prime is 28814581. The next prime is 28814627. The reversal of 28814618 is 81641882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11921 + ... + 14132.

It is an arithmetic number, because the mean of its divisors is an integer number (3126480).

Almost surely, 2^28814618 is an apocalyptic number.

28814618 is a deficient number, since it is larger than the sum of its proper divisors (21209062).

28814618 is a wasteful number, since it uses less digits than its factorization.

28814618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26141.

The product of its digits is 24576, while the sum is 38.

The square root of 28814618 is about 5367.9249249594. The cubic root of 28814618 is about 306.5756248860.

The spelling of 28814618 in words is "twenty-eight million, eight hundred fourteen thousand, six hundred eighteen".