228144836 has 12 divisors (see below), whose sum is σ = 399457212. Its totient is φ = 114014208.

The previous prime is 228144823. The next prime is 228144857. The reversal of 228144836 is 638441822.

228144836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3444736 + 224700100 = 1856^2 + 14990^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 228144836.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5045 + ... + 21948.

It is an arithmetic number, because the mean of its divisors is an integer number (33288101).

Almost surely, 2^228144836 is an apocalyptic number.

It is an amenable number.

228144836 is a deficient number, since it is larger than the sum of its proper divisors (171312376).

228144836 is a wasteful number, since it uses less digits than its factorization.

228144836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29110 (or 29108 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 228144836 is about 15104.4641083357. The cubic root of 228144836 is about 611.0408066585.

The spelling of 228144836 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred thirty-six".