813928460 has 24 divisors (see below), whose sum is σ = 1799211120. Its totient is φ = 308435904.

The previous prime is 813928447. The next prime is 813928477. The reversal of 813928460 is 64829318.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070579 + ... + 1071338.

It is an arithmetic number, because the mean of its divisors is an integer number (74967130).

Almost surely, 2^813928460 is an apocalyptic number.

It is an amenable number.

813928460 is an abundant number, since it is smaller than the sum of its proper divisors (985282660).

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

813928460 is a wasteful number, since it uses less digits than its factorization.

813928460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141945 (or 2141943 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 813928460 is about 28529.4314699750. The cubic root of 813928460 is about 933.6743144708.

The spelling of 813928460 in words is "eight hundred thirteen million, nine hundred twenty-eight thousand, four hundred sixty".