813846380 has 48 divisors (see below), whose sum is σ = 1840903680. Its totient is φ = 301226688.

The previous prime is 813846377. The next prime is 813846391. The reversal of 813846380 is 83648318.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 8564 + ... + 41243.

It is an arithmetic number, because the mean of its divisors is an integer number (38352160).

Almost surely, 2^813846380 is an apocalyptic number.

It is an amenable number.

813846380 is an abundant number, since it is smaller than the sum of its proper divisors (1027057300).

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

813846380 is a wasteful number, since it uses less digits than its factorization.

813846380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49878 (or 49876 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 813846380 is about 28527.9929192364. The cubic root of 813846380 is about 933.6429281890.

The spelling of 813846380 in words is "eight hundred thirteen million, eight hundred forty-six thousand, three hundred eighty".