2180222340 has 48 divisors (see below), whose sum is σ = 6106968000. Its totient is φ = 581169280.

The previous prime is 2180222333. The next prime is 2180222351. The reversal of 2180222340 is 432220812.

It is a self number, because there is not a number n which added to its sum of digits gives 2180222340.

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, 202411 + ... + 212909.

It is an arithmetic number, because the mean of its divisors is an integer number (127228500).

Almost surely, 2^2180222340 is an apocalyptic number.

2180222340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180222340 is an abundant number, since it is smaller than the sum of its proper divisors (3926745660).

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

2180222340 is a wasteful number, since it uses less digits than its factorization.

2180222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13972 (or 13970 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2180222340 is about 46692.8510588077. The cubic root of 2180222340 is about 1296.6823372111.

The spelling of 2180222340 in words is "two billion, one hundred eighty million, two hundred twenty-two thousand, three hundred forty".