228142288 has 40 divisors (see below), whose sum is σ = 483451200. Its totient is φ = 103434240.

The previous prime is 228142279. The next prime is 228142319. The reversal of 228142288 is 882241822.

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

It is a congruent number.

It is an unprimeable number.

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, 77581 + ... + 80467.

It is an arithmetic number, because the mean of its divisors is an integer number (12086280).

Almost surely, 2^228142288 is an apocalyptic number.

It is an amenable number.

228142288 is an abundant number, since it is smaller than the sum of its proper divisors (255308912).

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

228142288 is a wasteful number, since it uses less digits than its factorization.

228142288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 3349 counting only the distinct ones).

The product of its digits is 32768, while the sum is 37.

The square root of 228142288 is about 15104.3797621749. The cubic root of 228142288 is about 611.0385318787.

The spelling of 228142288 in words is "two hundred twenty-eight million, one hundred forty-two thousand, two hundred eighty-eight".