2180000812 has 48 divisors (see below), whose sum is σ = 4435264512. Its totient is φ = 927639680.

The previous prime is 2180000807. The next prime is 2180000821.

2180000812 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24648 + ... + 70480.

It is an arithmetic number, because the mean of its divisors is an integer number (92401344).

Almost surely, 2^2180000812 is an apocalyptic number.

2180000812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2180000812 is an abundant number, since it is smaller than the sum of its proper divisors (2255263700).

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

2180000812 is a wasteful number, since it uses less digits than its factorization.

2180000812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45918 (or 45916 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 2180000812 is about 46690.4788152788. The cubic root of 2180000812 is about 1296.6384179635.

It can be divided in two parts, 2180000 and 812, that added together give a palindrome (2180812).

The spelling of 2180000812 in words is "two billion, one hundred eighty million, eight hundred twelve", and thus it is an aban number.