228140227 has 6 divisors (see below), whose sum is σ = 265387668. Its totient is φ = 195548724.

The previous prime is 228140219. The next prime is 228140251. The reversal of 228140227 is 722041822.

It is not a de Polignac number, because 228140227 - 2³ = 228140219 is a prime.

It is a super-2 number, since 2×228140227² = 104095926351223058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228140195 and 228140204.

It is not an unprimeable number, because it can be changed into a prime (228140207) 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 in 5 ways as a sum of consecutive naturals, for example, 2327913 + ... + 2328010.

It is an arithmetic number, because the mean of its divisors is an integer number (44231278).

Almost surely, 2^228140227 is an apocalyptic number.

228140227 is a deficient number, since it is larger than the sum of its proper divisors (37247441).

228140227 is an equidigital number, since it uses as much as digits as its factorization.

228140227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655937 (or 4655930 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 228140227 is about 15104.3115367765. The cubic root of 228140227 is about 611.0366918659.

The spelling of 228140227 in words is "two hundred twenty-eight million, one hundred forty thousand, two hundred twenty-seven".