305228018 has 32 divisors (see below), whose sum is σ = 482594112. Its totient is φ = 144648000.

The previous prime is 305227997. The next prime is 305228023. The reversal of 305228018 is 810822503.

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 15 ways as a sum of consecutive naturals, for example, 435068 + ... + 435768.

It is an arithmetic number, because the mean of its divisors is an integer number (15081066).

Almost surely, 2^305228018 is an apocalyptic number.

305228018 is a deficient number, since it is larger than the sum of its proper divisors (177366094).

305228018 is a wasteful number, since it uses less digits than its factorization.

305228018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 305228018 is about 17470.7761132698. The cubic root of 305228018 is about 673.2992523242.

The spelling of 305228018 in words is "three hundred five million, two hundred twenty-eight thousand, eighteen".