228030643 has 16 divisors (see below), whose sum is σ = 237636000. Its totient is φ = 218661120.

The previous prime is 228030623. The next prime is 228030701. The reversal of 228030643 is 346030822.

It is a cyclic number.

It is not a de Polignac number, because 228030643 - 2¹³ = 228022451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228030613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 995653 + ... + 995881.

It is an arithmetic number, because the mean of its divisors is an integer number (14852250).

Almost surely, 2^228030643 is an apocalyptic number.

228030643 is a deficient number, since it is larger than the sum of its proper divisors (9605357).

228030643 is a wasteful number, since it uses less digits than its factorization.

228030643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 228030643 is about 15100.6835275758. The cubic root of 228030643 is about 610.9388418584.

It can be divided in two parts, 2280 and 30643, that added together give a palindrome (32923).

The spelling of 228030643 in words is "two hundred twenty-eight million, thirty thousand, six hundred forty-three".