228232512 has 112 divisors (see below), whose sum is σ = 674827200. Its totient is φ = 75640320.

The previous prime is 228232507. The next prime is 228232513. The reversal of 228232512 is 215232822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228232513) 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, 464587 + ... + 465077.

Almost surely, 2^228232512 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 228232512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337413600).

228232512 is an abundant number, since it is smaller than the sum of its proper divisors (446594688).

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

228232512 is a wasteful number, since it uses less digits than its factorization.

228232512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 765 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 228232512 is about 15107.3661503255. The cubic root of 228232512 is about 611.1190709070.

The spelling of 228232512 in words is "two hundred twenty-eight million, two hundred thirty-two thousand, five hundred twelve".