228130752 has 112 divisors (see below), whose sum is σ = 656722080. Its totient is φ = 69599232.

The previous prime is 228130751. The next prime is 228130759. The reversal of 228130752 is 257031822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228130751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119824 + ... + 121712.

It is an arithmetic number, because the mean of its divisors is an integer number (5863590).

Almost surely, 2^228130752 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 228130752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328361040).

228130752 is an abundant number, since it is smaller than the sum of its proper divisors (428591328).

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

228130752 is a wasteful number, since it uses less digits than its factorization.

228130752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 228130752 is about 15103.9978813558. The cubic root of 228130752 is about 611.0282326639.

It can be divided in two parts, 2281 and 30752, that added together give a palindrome (33033).

The spelling of 228130752 in words is "two hundred twenty-eight million, one hundred thirty thousand, seven hundred fifty-two".