228258818 has 16 divisors (see below), whose sum is σ = 361009440. Its totient is φ = 107942400.

The previous prime is 228258817. The next prime is 228258827. The reversal of 228258818 is 818852822.

It is not an unprimeable number, because it can be changed into a prime (228258817) 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, 19673 + ... + 29043.

It is an arithmetic number, because the mean of its divisors is an integer number (22563090).

Almost surely, 2^228258818 is an apocalyptic number.

228258818 is a deficient number, since it is larger than the sum of its proper divisors (132750622).

228258818 is a wasteful number, since it uses less digits than its factorization.

228258818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033.

The product of its digits is 163840, while the sum is 44.

The square root of 228258818 is about 15108.2367601253. The cubic root of 228258818 is about 611.1425491289.

The spelling of 228258818 in words is "two hundred twenty-eight million, two hundred fifty-eight thousand, eight hundred eighteen".