228144264 has 16 divisors (see below), whose sum is σ = 570360720. Its totient is φ = 76048080.

The previous prime is 228144173. The next prime is 228144281. The reversal of 228144264 is 462441822.

It is a super-2 number, since 2×228144264² = 104099610392203392, which contains 22 as substring.

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

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, 4752982 + ... + 4753029.

It is an arithmetic number, because the mean of its divisors is an integer number (35647545).

Almost surely, 2^228144264 is an apocalyptic number.

228144264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228144264 is an abundant number, since it is smaller than the sum of its proper divisors (342216456).

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

228144264 is a wasteful number, since it uses less digits than its factorization.

228144264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9506020 (or 9506016 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 228144264 is about 15104.4451735242. The cubic root of 228144264 is about 611.0402959951.

The spelling of 228144264 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred sixty-four".