768147228 has 72 divisors (see below), whose sum is σ = 1983526272. Its totient is φ = 250585632.

The previous prime is 768147223. The next prime is 768147229. The reversal of 768147228 is 822741867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768147223) 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, 401851 + ... + 403757.

It is an arithmetic number, because the mean of its divisors is an integer number (27548976).

Almost surely, 2^768147228 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 768147228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (991763136).

768147228 is an abundant number, since it is smaller than the sum of its proper divisors (1215379044).

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

768147228 is a wasteful number, since it uses less digits than its factorization.

768147228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2146 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 768147228 is about 27715.4691102280. The cubic root of 768147228 is about 915.8299090497.

The spelling of 768147228 in words is "seven hundred sixty-eight million, one hundred forty-seven thousand, two hundred twenty-eight".