228996252 has 72 divisors (see below), whose sum is σ = 593336016. Its totient is φ = 74440704.

The previous prime is 228996233. The next prime is 228996259. The reversal of 228996252 is 252699822.

228996252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 228996198 and 228996207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228996259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490123 + ... + 490589.

It is an arithmetic number, because the mean of its divisors is an integer number (8240778).

Almost surely, 2^228996252 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 228996252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296668008).

228996252 is an abundant number, since it is smaller than the sum of its proper divisors (364339764).

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

228996252 is a wasteful number, since it uses less digits than its factorization.

228996252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 782 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 228996252 is about 15132.6221125091. The cubic root of 228996252 is about 611.7999794888.

The spelling of 228996252 in words is "two hundred twenty-eight million, nine hundred ninety-six thousand, two hundred fifty-two".