228940027 has 2 divisors, whose sum is σ = 228940028. Its totient is φ = 228940026.

The previous prime is 228940013. The next prime is 228940087. The reversal of 228940027 is 720049822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228940027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228939974 and 228940001.

It is not a weakly prime, because it can be changed into another prime (228940087) 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 as a sum of consecutive naturals, namely, 114470013 + 114470014.

It is an arithmetic number, because the mean of its divisors is an integer number (114470014).

Almost surely, 2^228940027 is an apocalyptic number.

228940027 is a deficient number, since it is larger than the sum of its proper divisors (1).

228940027 is an equidigital number, since it uses as much as digits as its factorization.

228940027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 228940027 is about 15130.7642569700. The cubic root of 228940027 is about 611.7499040411.

Adding to 228940027 its reverse (720049822), we get a palindrome (948989849).

The spelling of 228940027 in words is "two hundred twenty-eight million, nine hundred forty thousand, twenty-seven".