228328012 has 24 divisors (see below), whose sum is σ = 441423360. Its totient is φ = 102470160.

The previous prime is 228327961. The next prime is 228328019. The reversal of 228328012 is 210823822.

228328012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228328019) by changing a digit.

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, 29368 + ... + 36319.

It is an arithmetic number, because the mean of its divisors is an integer number (18392640).

Almost surely, 2^228328012 is an apocalyptic number.

228328012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

228328012 is a deficient number, since it is larger than the sum of its proper divisors (213095348).

228328012 is a wasteful number, since it uses less digits than its factorization.

228328012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65781 (or 65779 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 228328012 is about 15110.5265295422. The cubic root of 228328012 is about 611.2042964700.

The spelling of 228328012 in words is "two hundred twenty-eight million, three hundred twenty-eight thousand, twelve".