812882180 has 96 divisors (see below), whose sum is σ = 1946730240. Its totient is φ = 282401280.

The previous prime is 812882179. The next prime is 812882197. The reversal of 812882180 is 81288218.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656522 + ... + 657758.

It is an arithmetic number, because the mean of its divisors is an integer number (20278440).

Almost surely, 2^812882180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812882180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973365120).

812882180 is an abundant number, since it is smaller than the sum of its proper divisors (1133848060).

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

812882180 is a wasteful number, since it uses less digits than its factorization.

812882180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 38.

The square root of 812882180 is about 28511.0887200051. The cubic root of 812882180 is about 933.2740730515.

The spelling of 812882180 in words is "eight hundred twelve million, eight hundred eighty-two thousand, one hundred eighty".