228326641 has 4 divisors (see below), whose sum is σ = 228541300. Its totient is φ = 228111984.

The previous prime is 228326639. The next prime is 228326671. The reversal of 228326641 is 146623822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132365025 + 95961616 = 11505^2 + 9796^2 .

It is a cyclic number.

It is not a de Polignac number, because 228326641 - 2¹ = 228326639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228326597 and 228326606.

It is not an unprimeable number, because it can be changed into a prime (228326621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105726 + ... + 107863.

It is an arithmetic number, because the mean of its divisors is an integer number (57135325).

Almost surely, 2^228326641 is an apocalyptic number.

It is an amenable number.

228326641 is a deficient number, since it is larger than the sum of its proper divisors (214659).

228326641 is a wasteful number, since it uses less digits than its factorization.

228326641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214658.

The product of its digits is 27648, while the sum is 34.

The square root of 228326641 is about 15110.4811637486. The cubic root of 228326641 is about 611.2030731382.

The spelling of 228326641 in words is "two hundred twenty-eight million, three hundred twenty-six thousand, six hundred forty-one".