2187180 has 72 divisors (see below), whose sum is σ = 6879600. Its totient is φ = 561792.

The previous prime is 2187161. The next prime is 2187193. The reversal of 2187180 is 817812.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5011 + ... + 5429.

It is an arithmetic number, because the mean of its divisors is an integer number (95550).

2^2187180 is an apocalyptic number.

2187180 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 2187180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3439800).

2187180 is an abundant number, since it is smaller than the sum of its proper divisors (4692420).

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

2187180 is a wasteful number, since it uses less digits than its factorization.

2187180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2187180 is about 1478.9117620737. The cubic root of 2187180 is about 129.8060223400.

The spelling of 2187180 in words is "two million, one hundred eighty-seven thousand, one hundred eighty".