228488912 has 40 divisors (see below), whose sum is σ = 470375400. Its totient is φ = 107315712.

The previous prime is 228488903. The next prime is 228488921. The reversal of 228488912 is 219884822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228488903) and next prime (228488921).

It can be written as a sum of positive squares in 4 ways, for example, as 17774656 + 210714256 = 4216^2 + 14516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10514 + ... + 23822.

It is an arithmetic number, because the mean of its divisors is an integer number (11759385).

Almost surely, 2^228488912 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 228488912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235187700).

228488912 is an abundant number, since it is smaller than the sum of its proper divisors (241886488).

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

228488912 is a wasteful number, since it uses less digits than its factorization.

228488912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13383 (or 13377 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 228488912 is about 15115.8496949394. The cubic root of 228488912 is about 611.3478321947.

The spelling of 228488912 in words is "two hundred twenty-eight million, four hundred eighty-eight thousand, nine hundred twelve".