820531348 has 48 divisors (see below), whose sum is σ = 1844156160. Its totient is φ = 310489344.

The previous prime is 820531337. The next prime is 820531363. The reversal of 820531348 is 843135028.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40633 + ... + 57376.

It is an arithmetic number, because the mean of its divisors is an integer number (38419920).

Almost surely, 2^820531348 is an apocalyptic number.

It is an amenable number.

820531348 is an abundant number, since it is smaller than the sum of its proper divisors (1023624812).

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

820531348 is a wasteful number, since it uses less digits than its factorization.

820531348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98056 (or 98054 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 820531348 is about 28644.9183625997. The cubic root of 820531348 is about 936.1922879715.

The spelling of 820531348 in words is "eight hundred twenty million, five hundred thirty-one thousand, three hundred forty-eight".