228308833 has 8 divisors (see below), whose sum is σ = 244675008. Its totient is φ = 212479344.

The previous prime is 228308797. The next prime is 228308837. The reversal of 228308833 is 338803822.

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 228308833 - 2⁹ = 228308321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228308792 and 228308801.

It is not an unprimeable number, because it can be changed into a prime (228308837) 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, 133291 + ... + 134992.

It is an arithmetic number, because the mean of its divisors is an integer number (30584376).

Almost surely, 2^228308833 is an apocalyptic number.

228308833 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

228308833 is a deficient number, since it is larger than the sum of its proper divisors (16366175).

228308833 is a wasteful number, since it uses less digits than its factorization.

228308833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268343.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 228308833 is about 15109.8918923995. The cubic root of 228308833 is about 611.1871827640.

It can be divided in two parts, 2283088 and 33, that added together give a square (2283121 = 1511²).

The spelling of 228308833 in words is "two hundred twenty-eight million, three hundred eight thousand, eight hundred thirty-three".