228085312 has 56 divisors (see below), whose sum is σ = 557068736. Its totient is φ = 90229248.

The previous prime is 228085301. The next prime is 228085339. The reversal of 228085312 is 213580822.

228085312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

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 7 ways as a sum of consecutive naturals, for example, 13758 + ... + 25405.

It is an arithmetic number, because the mean of its divisors is an integer number (9947656).

Almost surely, 2^228085312 is an apocalyptic number.

It is an amenable number.

228085312 is an abundant number, since it is smaller than the sum of its proper divisors (328983424).

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

228085312 is a wasteful number, since it uses less digits than its factorization.

228085312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39195 (or 39185 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 228085312 is about 15102.4935689442. The cubic root of 228085312 is about 610.9876609503.

The spelling of 228085312 in words is "two hundred twenty-eight million, eighty-five thousand, three hundred twelve".