825341220 has 72 divisors (see below), whose sum is σ = 2731135680. Its totient is φ = 200082240.

The previous prime is 825341213. The next prime is 825341239. The reversal of 825341220 is 22143528.

825341220 is a `hidden beast` number, since 8 + 2 + 534 + 122 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 206440 + ... + 210399.

It is an arithmetic number, because the mean of its divisors is an integer number (37932440).

Almost surely, 2^825341220 is an apocalyptic number.

It is an amenable number.

825341220 is an abundant number, since it is smaller than the sum of its proper divisors (1905794460).

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

825341220 is a wasteful number, since it uses less digits than its factorization.

825341220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416865 (or 416860 counting only the distinct ones).

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

The square root of 825341220 is about 28728.7524964103. The cubic root of 825341220 is about 938.0180134535.

Adding to 825341220 its reverse (22143528), we get a palindrome (847484748).

The spelling of 825341220 in words is "eight hundred twenty-five million, three hundred forty-one thousand, two hundred twenty".