228381611 has 8 divisors (see below), whose sum is σ = 234239904. Its totient is φ = 222580800.

The previous prime is 228381607. The next prime is 228381613. The reversal of 228381611 is 116183822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228381611 - 2² = 228381607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228381613) 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 7 ways as a sum of consecutive naturals, for example, 6266 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (29279988).

Almost surely, 2^228381611 is an apocalyptic number.

228381611 is a deficient number, since it is larger than the sum of its proper divisors (5858293).

228381611 is a wasteful number, since it uses less digits than its factorization.

228381611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28741.

The product of its digits is 4608, while the sum is 32.

The square root of 228381611 is about 15112.2999904052. The cubic root of 228381611 is about 611.2521185714.

The spelling of 228381611 in words is "two hundred twenty-eight million, three hundred eighty-one thousand, six hundred eleven".