228396814818 has 32 divisors (see below), whose sum is σ = 483691357440. Its totient is φ = 71649826560.

The previous prime is 228396814817. The next prime is 228396814879. The reversal of 228396814818 is 818418693822.

It is not an unprimeable number, because it can be changed into a prime (228396814817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2095063 + ... + 2201381.

It is an arithmetic number, because the mean of its divisors is an integer number (15115354920).

Almost surely, 2^228396814818 is an apocalyptic number.

228396814818 is an abundant number, since it is smaller than the sum of its proper divisors (255294542622).

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

228396814818 is a wasteful number, since it uses less digits than its factorization.

228396814818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127402.

The product of its digits is 10616832, while the sum is 60.

The spelling of 228396814818 in words is "two hundred twenty-eight billion, three hundred ninety-six million, eight hundred fourteen thousand, eight hundred eighteen".