228016132 has 12 divisors (see below), whose sum is σ = 399897036. Its totient is φ = 113759840.

The previous prime is 228016099. The next prime is 228016141. The reversal of 228016132 is 231610822.

It can be written as a sum of positive squares in 2 ways, for example, as 118897216 + 109118916 = 10904^2 + 10446^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228016097 and 228016106.

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, 59983 + ... + 63670.

It is an arithmetic number, because the mean of its divisors is an integer number (33324753).

Almost surely, 2^228016132 is an apocalyptic number.

It is an amenable number.

228016132 is a deficient number, since it is larger than the sum of its proper divisors (171880904).

228016132 is a wasteful number, since it uses less digits than its factorization.

228016132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124118 (or 124116 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 228016132 is about 15100.2030449925. The cubic root of 228016132 is about 610.9258823112.

Adding to 228016132 its reverse (231610822), we get a palindrome (459626954).

The spelling of 228016132 in words is "two hundred twenty-eight million, sixteen thousand, one hundred thirty-two".