828399132 has 36 divisors (see below), whose sum is σ = 2284374456. Its totient is φ = 251029920.

The previous prime is 828399097. The next prime is 828399149. The reversal of 828399132 is 231993828.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1045563 + ... + 1046354.

It is an arithmetic number, because the mean of its divisors is an integer number (63454846).

Almost surely, 2^828399132 is an apocalyptic number.

It is an amenable number.

828399132 is an abundant number, since it is smaller than the sum of its proper divisors (1455975324).

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

828399132 is a wasteful number, since it uses less digits than its factorization.

828399132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091938 (or 2091933 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 828399132 is about 28781.9237022128. The cubic root of 828399132 is about 939.1750465578.

The spelling of 828399132 in words is "eight hundred twenty-eight million, three hundred ninety-nine thousand, one hundred thirty-two".