228087216 has 120 divisors (see below), whose sum is σ = 740024064. Its totient is φ = 64229760.

The previous prime is 228087173. The next prime is 228087221. The reversal of 228087216 is 612780822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 69975 + ... + 73161.

Almost surely, 2^228087216 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 228087216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370012032).

228087216 is an abundant number, since it is smaller than the sum of its proper divisors (511936848).

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

228087216 is a wasteful number, since it uses less digits than its factorization.

228087216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 228087216 is about 15102.5566047607. The cubic root of 228087216 is about 610.9893610704.

The spelling of 228087216 in words is "two hundred twenty-eight million, eighty-seven thousand, two hundred sixteen".