831164420 has 12 divisors (see below), whose sum is σ = 1745445324. Its totient is φ = 332465760.

The previous prime is 831164417. The next prime is 831164441. The reversal of 831164420 is 24461138.

It can be written as a sum of positive squares in 2 ways, for example, as 623401024 + 207763396 = 24968^2 + 14414^2 .

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, 20779091 + ... + 20779130.

It is an arithmetic number, because the mean of its divisors is an integer number (145453777).

Almost surely, 2^831164420 is an apocalyptic number.

It is an amenable number.

831164420 is an abundant number, since it is smaller than the sum of its proper divisors (914280904).

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

831164420 is a wasteful number, since it uses less digits than its factorization.

831164420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41558230 (or 41558228 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 831164420 is about 28829.9223030517. The cubic root of 831164420 is about 940.2189093298.

The spelling of 831164420 in words is "eight hundred thirty-one million, one hundred sixty-four thousand, four hundred twenty".