2188250 has 16 divisors (see below), whose sum is σ = 4096872. Its totient is φ = 875200.

The previous prime is 2188237. The next prime is 2188261. The reversal of 2188250 is 528812.

2188250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1087849 + 1100401 = 1043^2 + 1049^2 .

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 4127 + ... + 4626.

2^2188250 is an apocalyptic number.

2188250 is a deficient number, since it is larger than the sum of its proper divisors (1908622).

2188250 is an equidigital number, since it uses as much as digits as its factorization.

2188250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770 (or 8760 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2188250 is about 1479.2734703225. The cubic root of 2188250 is about 129.8271865485.

The spelling of 2188250 in words is "two million, one hundred eighty-eight thousand, two hundred fifty".