2187268 has 12 divisors (see below), whose sum is σ = 3921372. Its totient is φ = 1066880.

The previous prime is 2187259. The next prime is 2187287. The reversal of 2187268 is 8627812.

It can be written as a sum of positive squares in 2 ways, for example, as 315844 + 1871424 = 562^2 + 1368^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6505 + ... + 6832.

It is an arithmetic number, because the mean of its divisors is an integer number (326781).

2^2187268 is an apocalyptic number.

It is an amenable number.

2187268 is a deficient number, since it is larger than the sum of its proper divisors (1734104).

2187268 is a wasteful number, since it uses less digits than its factorization.

2187268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13382 (or 13380 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 2187268 is about 1478.9415133804. The cubic root of 2187268 is about 129.8077632083.

The spelling of 2187268 in words is "two million, one hundred eighty-seven thousand, two hundred sixty-eight".