2182780000 has 60 divisors (see below), whose sum is σ = 5370015420. Its totient is φ = 873104000.

The previous prime is 2182779997. The next prime is 2182780001. The reversal of 2182780000 is 872812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182780001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34570 + ... + 74569.

It is an arithmetic number, because the mean of its divisors is an integer number (89500257).

Almost surely, 2^2182780000 is an apocalyptic number.

2182780000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2182780000 is an abundant number, since it is smaller than the sum of its proper divisors (3187235420).

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

2182780000 is an equidigital number, since it uses as much as digits as its factorization.

2182780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109169 (or 109146 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2182780000 is about 46720.2311638117. The cubic root of 2182780000 is about 1297.1891932410.

The spelling of 2182780000 in words is "two billion, one hundred eighty-two million, seven hundred eighty thousand".