228427418 has 16 divisors (see below), whose sum is σ = 352763880. Its totient is φ = 110854656.

The previous prime is 228427417. The next prime is 228427447. The reversal of 228427418 is 814724822.

It can be written as a sum of positive squares in 4 ways, for example, as 205836409 + 22591009 = 14347^2 + 4753^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228427411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28478 + ... + 35606.

Almost surely, 2^228427418 is an apocalyptic number.

228427418 is a deficient number, since it is larger than the sum of its proper divisors (124336462).

228427418 is a wasteful number, since it uses less digits than its factorization.

228427418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7601.

The product of its digits is 57344, while the sum is 38.

The square root of 228427418 is about 15113.8154679750. The cubic root of 228427418 is about 611.2929825649.

The spelling of 228427418 in words is "two hundred twenty-eight million, four hundred twenty-seven thousand, four hundred eighteen".