228056442 has 16 divisors (see below), whose sum is σ = 456415680. Its totient is φ = 75968352.

The previous prime is 228056407. The next prime is 228056447. The reversal of 228056442 is 244650822.

228056442 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 (228056447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2158 + ... + 21465.

It is an arithmetic number, because the mean of its divisors is an integer number (28525980).

Almost surely, 2^228056442 is an apocalyptic number.

228056442 is an abundant number, since it is smaller than the sum of its proper divisors (228359238).

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

228056442 is a wasteful number, since it uses less digits than its factorization.

228056442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25237.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 228056442 is about 15101.5377362704. The cubic root of 228056442 is about 610.9618811841.

The spelling of 228056442 in words is "two hundred twenty-eight million, fifty-six thousand, four hundred forty-two".