228541216 has 48 divisors (see below), whose sum is σ = 471750048. Its totient is φ = 108864000.

The previous prime is 228541171. The next prime is 228541223. The reversal of 228541216 is 612145822.

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, 54391 + ... + 58441.

It is an arithmetic number, because the mean of its divisors is an integer number (9828126).

Almost surely, 2^228541216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228541216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235875024).

228541216 is an abundant number, since it is smaller than the sum of its proper divisors (243208832).

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

228541216 is a wasteful number, since it uses less digits than its factorization.

228541216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145 (or 4137 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 228541216 is about 15117.5797004679. The cubic root of 228541216 is about 611.3944770511.

The spelling of 228541216 in words is "two hundred twenty-eight million, five hundred forty-one thousand, two hundred sixteen".