228145016 has 48 divisors (see below), whose sum is σ = 472846920. Its totient is φ = 103118400.

The previous prime is 228145013. The next prime is 228145031. The reversal of 228145016 is 610541822.

It is a self number, because there is not a number n which added to its sum of digits gives 228145016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228145013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203690 + ... + 204806.

Almost surely, 2^228145016 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 228145016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236423460).

228145016 is an abundant number, since it is smaller than the sum of its proper divisors (244701904).

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

228145016 is a wasteful number, since it uses less digits than its factorization.

228145016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 228145016 is about 15104.4700668378. The cubic root of 228145016 is about 611.0409673566.

Adding to 228145016 its reverse (610541822), we get a palindrome (838686838).

The spelling of 228145016 in words is "two hundred twenty-eight million, one hundred forty-five thousand, sixteen".