228385043 has 2 divisors, whose sum is σ = 228385044. Its totient is φ = 228385042.

The previous prime is 228385019. The next prime is 228385049. The reversal of 228385043 is 340583822.

228385043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228385043 - 2¹⁸ = 228122899 is a prime.

It is a super-2 number, since 2×228385043² = 104319455732223698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228384994 and 228385012.

It is not a weakly prime, because it can be changed into another prime (228385049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114192521 + 114192522.

It is an arithmetic number, because the mean of its divisors is an integer number (114192522).

Almost surely, 2^228385043 is an apocalyptic number.

228385043 is a deficient number, since it is larger than the sum of its proper divisors (1).

228385043 is an equidigital number, since it uses as much as digits as its factorization.

228385043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 228385043 is about 15112.4135398685. The cubic root of 228385043 is about 611.2551804156.

The spelling of 228385043 in words is "two hundred twenty-eight million, three hundred eighty-five thousand, forty-three".