228132224 has 32 divisors (see below), whose sum is σ = 469151040. Its totient is φ = 110384640.

The previous prime is 228132217. The next prime is 228132271. The reversal of 228132224 is 422231822.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 228132193 and 228132202.

It is a congruent number.

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, 24779 + ... + 32714.

It is an arithmetic number, because the mean of its divisors is an integer number (14660970).

Almost surely, 2^228132224 is an apocalyptic number.

It is an amenable number.

228132224 is an abundant number, since it is smaller than the sum of its proper divisors (241018816).

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

228132224 is an equidigital number, since it uses as much as digits as its factorization.

228132224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57538 (or 57526 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 228132224 is about 15104.0466100976. The cubic root of 228132224 is about 611.0295468687.

The spelling of 228132224 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, two hundred twenty-four".