660228810 has 32 divisors (see below), whose sum is σ = 1587434112. Its totient is φ = 175740480.

The previous prime is 660228809. The next prime is 660228911. The reversal of 660228810 is 18822066.

660228810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×660228810² = 871804163108032200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046 + ... + 36465.

It is an arithmetic number, because the mean of its divisors is an integer number (49607316).

Almost surely, 2^660228810 is an apocalyptic number.

660228810 is an abundant number, since it is smaller than the sum of its proper divisors (927205302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660228810 is a wasteful number, since it uses less digits than its factorization.

660228810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40078.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 660228810 is about 25694.9179800209. The cubic root of 660228810 is about 870.7593713476.

The spelling of 660228810 in words is "six hundred sixty million, two hundred twenty-eight thousand, eight hundred ten".