228473472 has 128 divisors (see below), whose sum is σ = 663897600. Its totient is φ = 69304320.

The previous prime is 228473459. The next prime is 228473473. The reversal of 228473472 is 274374822.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 228473472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228473473) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 201804 + ... + 202932.

It is an arithmetic number, because the mean of its divisors is an integer number (5186700).

Almost surely, 2^228473472 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 228473472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331948800).

228473472 is an abundant number, since it is smaller than the sum of its proper divisors (435424128).

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

228473472 is a wasteful number, since it uses less digits than its factorization.

228473472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1182 counting only the distinct ones).

The product of its digits is 150528, while the sum is 39.

The square root of 228473472 is about 15115.3389641119. The cubic root of 228473472 is about 611.3340613979.

The spelling of 228473472 in words is "two hundred twenty-eight million, four hundred seventy-three thousand, four hundred seventy-two".