228321033 has 8 divisors (see below), whose sum is σ = 322335648. Its totient is φ = 143260224.

The previous prime is 228321007. The next prime is 228321047. The reversal of 228321033 is 330123822.

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

It is not a de Polignac number, because 228321033 - 2⁵ = 228321001 is a prime.

It is a super-2 number, since 2×228321033² = 104260988220374178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228320994 and 228321012.

It is not an unprimeable number, because it can be changed into a prime (228321053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2238391 + ... + 2238492.

It is an arithmetic number, because the mean of its divisors is an integer number (40291956).

Almost surely, 2^228321033 is an apocalyptic number.

It is an amenable number.

228321033 is a deficient number, since it is larger than the sum of its proper divisors (94014615).

228321033 is a wasteful number, since it uses less digits than its factorization.

228321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476903.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 228321033 is about 15110.2955960497. The cubic root of 228321033 is about 611.1980691158.

Adding to 228321033 its reverse (330123822), we get a palindrome (558444855).

The spelling of 228321033 in words is "two hundred twenty-eight million, three hundred twenty-one thousand, thirty-three".