2187308 has 12 divisors (see below), whose sum is σ = 3865680. Its totient is φ = 1082832.

The previous prime is 2187301. The next prime is 2187319. The reversal of 2187308 is 8037812.

It is not an unprimeable number, because it can be changed into a prime (2187301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2243 + ... + 3066.

It is an arithmetic number, because the mean of its divisors is an integer number (322140).

2^2187308 is an apocalyptic number.

It is an amenable number.

2187308 is a deficient number, since it is larger than the sum of its proper divisors (1678372).

2187308 is a wasteful number, since it uses less digits than its factorization.

2187308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416 (or 5414 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2187308 is about 1478.9550365038. The cubic root of 2187308 is about 129.8085544966.

The spelling of 2187308 in words is "two million, one hundred eighty-seven thousand, three hundred eight".