168228441 has 8 divisors (see below), whose sum is σ = 249227360. Its totient is φ = 112152276.

The previous prime is 168228439. The next prime is 168228443. The reversal of 168228441 is 144822861.

168228441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168228439) and next prime (168228443).

It is not a de Polignac number, because 168228441 - 2¹ = 168228439 is a prime.

It is a super-2 number, since 2×168228441² = 56601616722580962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168228396 and 168228405.

It is not an unprimeable number, because it can be changed into a prime (168228443) 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, 3115315 + ... + 3115368.

It is an arithmetic number, because the mean of its divisors is an integer number (31153420).

Almost surely, 2^168228441 is an apocalyptic number.

It is an amenable number.

168228441 is a deficient number, since it is larger than the sum of its proper divisors (80998919).

168228441 is an equidigital number, since it uses as much as digits as its factorization.

168228441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230692 (or 6230686 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 168228441 is about 12970.2907060713. The cubic root of 168228441 is about 552.0348217636.

The spelling of 168228441 in words is "one hundred sixty-eight million, two hundred twenty-eight thousand, four hundred forty-one".