228958818 has 16 divisors (see below), whose sum is σ = 499546656. Its totient is φ = 69381440.

The previous prime is 228958817. The next prime is 228958823. The reversal of 228958818 is 818859822.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228958817) 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 7 ways as a sum of consecutive naturals, for example, 1734471 + ... + 1734602.

It is an arithmetic number, because the mean of its divisors is an integer number (31221666).

Almost surely, 2^228958818 is an apocalyptic number.

228958818 is an abundant number, since it is smaller than the sum of its proper divisors (270587838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228958818 is a wasteful number, since it uses less digits than its factorization.

228958818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469089.

The product of its digits is 737280, while the sum is 51.

The square root of 228958818 is about 15131.3851976612. The cubic root of 228958818 is about 611.7666407066.

It can be divided in two parts, 22895 and 8818, that added together give a palindrome (31713).

The spelling of 228958818 in words is "two hundred twenty-eight million, nine hundred fifty-eight thousand, eight hundred eighteen".