828220768 has 24 divisors (see below), whose sum is σ = 1654900632. Its totient is φ = 407928576.

The previous prime is 828220747. The next prime is 828220781. The reversal of 828220768 is 867022828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191005 + ... + 195292.

It is an arithmetic number, because the mean of its divisors is an integer number (68954193).

Almost surely, 2^828220768 is an apocalyptic number.

It is an amenable number.

828220768 is a deficient number, since it is larger than the sum of its proper divisors (826679864).

828220768 is a wasteful number, since it uses less digits than its factorization.

828220768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386374 (or 386366 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 828220768 is about 28778.8249933871. The cubic root of 828220768 is about 939.1076366039.

The spelling of 828220768 in words is "eight hundred twenty-eight million, two hundred twenty thousand, seven hundred sixty-eight".