228888144 has 30 divisors (see below), whose sum is σ = 640569306. Its totient is φ = 76296000.

The previous prime is 228888133. The next prime is 228888151. The reversal of 228888144 is 441888822.

228888144 is digitally balanced in base 3, 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 only one way, i.e., 129686544 + 99201600 = 11388^2 + 9960^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 228888144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 794607 + ... + 794894.

Almost surely, 2^228888144 is an apocalyptic number.

228888144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228888144 is an abundant number, since it is smaller than the sum of its proper divisors (411681162).

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

228888144 is a wasteful number, since it uses less digits than its factorization.

228888144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589515 (or 1589506 counting only the distinct ones).

The product of its digits is 262144, while the sum is 45.

The square root of 228888144 is about 15129.0496727323. The cubic root of 228888144 is about 611.7036884177.

The spelling of 228888144 in words is "two hundred twenty-eight million, eight hundred eighty-eight thousand, one hundred forty-four".