228420422827 has 4 divisors (see below), whose sum is σ = 229233307176. Its totient is φ = 227607538480.

The previous prime is 228420422809. The next prime is 228420422873. The reversal of 228420422827 is 728224024822.

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

It is a cyclic number.

It is not a de Polignac number, because 228420422827 - 2¹⁵ = 228420390059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228420422887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406441753 + ... + 406442314.

It is an arithmetic number, because the mean of its divisors is an integer number (57308326794).

Almost surely, 2^228420422827 is an apocalyptic number.

228420422827 is a deficient number, since it is larger than the sum of its proper divisors (812884349).

228420422827 is an equidigital number, since it uses as much as digits as its factorization.

228420422827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812884348.

The product of its (nonzero) digits is 458752, while the sum is 43.

The spelling of 228420422827 in words is "two hundred twenty-eight billion, four hundred twenty million, four hundred twenty-two thousand, eight hundred twenty-seven".