228132280 has 16 divisors (see below), whose sum is σ = 513297720. Its totient is φ = 91252896.

The previous prime is 228132271. The next prime is 228132283. The reversal of 228132280 is 82231822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228132283) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2851614 + ... + 2851693.

Almost surely, 2^228132280 is an apocalyptic number.

228132280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228132280 is an abundant number, since it is smaller than the sum of its proper divisors (285165440).

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

228132280 is a wasteful number, since it uses less digits than its factorization.

228132280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703318 (or 5703314 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 228132280 is about 15104.0484639053. The cubic root of 228132280 is about 611.0295968655.

The spelling of 228132280 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, two hundred eighty".