228340747 has 2 divisors, whose sum is σ = 228340748. Its totient is φ = 228340746.

The previous prime is 228340733. The next prime is 228340771. The reversal of 228340747 is 747043822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228340747 - 2²⁷ = 94123019 is a prime.

It is not a weakly prime, because it can be changed into another prime (228344747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114170373 + 114170374.

It is an arithmetic number, because the mean of its divisors is an integer number (114170374).

Almost surely, 2^228340747 is an apocalyptic number.

228340747 is a deficient number, since it is larger than the sum of its proper divisors (1).

228340747 is an equidigital number, since it uses as much as digits as its factorization.

228340747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 228340747 is about 15110.9479186449. The cubic root of 228340747 is about 611.2156595699.

The spelling of 228340747 in words is "two hundred twenty-eight million, three hundred forty thousand, seven hundred forty-seven".