2180362320 has 160 divisors (see below), whose sum is σ = 7525232640. Its totient is φ = 580262400.

The previous prime is 2180362279. The next prime is 2180362333. The reversal of 2180362320 is 232630812.

2180362320 is a `hidden beast` number, since 2 + 18 + 0 + 3 + 623 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 1893745 + ... + 1894895.

It is an arithmetic number, because the mean of its divisors is an integer number (47032704).

Almost surely, 2^2180362320 is an apocalyptic number.

2180362320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180362320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3762616320).

2180362320 is an abundant number, since it is smaller than the sum of its proper divisors (5344870320).

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

2180362320 is a wasteful number, since it uses less digits than its factorization.

2180362320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2180362320 is about 46694.3499794140. The cubic root of 2180362320 is about 1296.7100875473.

The spelling of 2180362320 in words is "two billion, one hundred eighty million, three hundred sixty-two thousand, three hundred twenty".