828605380 has 24 divisors (see below), whose sum is σ = 1787101848. Its totient is φ = 322483968.

The previous prime is 828605369. The next prime is 828605389. The reversal of 828605380 is 83506828.

It can be written as a sum of positive squares in 4 ways, for example, as 167909764 + 660695616 = 12958^2 + 25704^2 .

It is not an unprimeable number, because it can be changed into a prime (828605389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559129 + ... + 560608.

It is an arithmetic number, because the mean of its divisors is an integer number (74462577).

Almost surely, 2^828605380 is an apocalyptic number.

It is an amenable number.

828605380 is an abundant number, since it is smaller than the sum of its proper divisors (958496468).

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

828605380 is a wasteful number, since it uses less digits than its factorization.

828605380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119783 (or 1119781 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 828605380 is about 28785.5064225037. The cubic root of 828605380 is about 939.2529827822.

The spelling of 828605380 in words is "eight hundred twenty-eight million, six hundred five thousand, three hundred eighty".