2187204 has 48 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 673920.

The previous prime is 2187197. The next prime is 2187217. The reversal of 2187204 is 4027812.

2187204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2187204² = 9567722675232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11994 + ... + 12174.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

2^2187204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751840).

2187204 is an abundant number, since it is smaller than the sum of its proper divisors (3316476).

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

2187204 is a wasteful number, since it uses less digits than its factorization.

2187204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2187204 is about 1478.9198761258. The cubic root of 2187204 is about 129.8064971269.

The spelling of 2187204 in words is "two million, one hundred eighty-seven thousand, two hundred four".